Ceiling Systems

Plasterboard Ceiling Systems

400C

Issue 2 May 2004

Fire-rated Ceiling Systems

2

Plasterboard Ceiling Systems Contents

Fire-rated Ceiling Systems Standard Ceilings Design ............................... 3-7 Introduction.....................................................3 Fire Ratings .....................................................3 Systems Mass.................................................3 Decoration.......................................................3 General Construction Details.........................4 Materials...................................................... 4-5 Installation.......................................................6 Backblocking ...................................................7 System Selection ............................................8-18 Standard Construction .................................19-22 Cable and Loaded Penetrations........................23 Pipe Penetrations...............................................24 Ceilings to a Radius ...........................................25 Change of Pitch..................................................26 Bulkheads......................................................27-28 Light Recess .......................................................29 Access Hatch ................................................ 30-31 Beam Protection .......................................... 32-34 Joints ..................................................................35 Perimeter Details ......................................... 36-38 Non Fire-rated Ceiling Systems Standard Ceilings Design ........................... 39-43 Introduction...................................................39 Fire Hazard Properties ..................................39 Systems Mass...............................................39 Decoration.....................................................39 General Construction Details.......................39 Materials.................................................. 39-40 Installation............................................... 40-41 Backblocking ........................................... 42-43 System Selector.................................................44 Standard Construction ................................ 45-47 Perimeter and Bulkhead Details .......................48

QuietZone™ Ceiling Systems Introduction........................................................49 Acoustic Ceiling Mount............................... 49-50 Installation ...............................................49 Direct Fix ..................................................49 Suspended ...............................................50 Load Ratings ............................................50 Performance.............................................50 Acoustic Selector ...............................................51 Installation.................................................... 52-54 Quiet Ceilings ..........................................52 Quieter Ceilings .......................................53 Quietest Ceilings .....................................54 General Information Guarantee............................................ Back Cover TecASSIST Details .............................. Back Cover Contact Details.................................... Back Cover

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Standard Ceilings Design Introduction Boral Plasterboard Fire-rated Ceiling Systems have been designed to provide fire resistance ratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90 and FRL 120/120/120. Systems are also available to provide 30, 60, 90 or 120 mins. resistance to incipient spread of fire. Ceilings can be constructed under roofs of Tile, Aluminium or Steel Profiled Section fixed to battens on a steel or timber framework or under floors constructed of at least 12mm Plywood, Timber or Particle Board fixed to a steel or timber supporting frame. Ceiling systems may be fixed as either a Direct Fixed System, Suspended System, or Direct Clipped (Furred) System. Note: • Where illustrations in this manual show a Suspended Ceiling System, a Direct Fixed or Furred System may also be used. • These ceiling construction details are not suitable for external ceilings.

Boral Plasterboard FRL 120/120/120 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 710, SI 736, SI 1761, SI 1891 and FSH-0597. These systems are covered and validated by fire opinions FCO-1856 and FCO-1658. For details of the FRL 120/120/120 system, please refer to Boral Plasterboard TecASSIST or TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover).

Early Fire Hazard Properties Boral Plasterboard Firestop, tested for Early Fire Hazard Properties in accordance with Australian Standard 1530.3 - 1989, recorded the following results: Ignitability (0-20) - 13 Spread of Flame (0-10) - 0 Heat Evolved (0-10) - 1 Smoke Developed (0-10) - 2

Ceiling Systems Mass Calculations Component Mass •

Construction Features • • •

•

Ceiling can be curved to a minimum radius of 6000mm. Ceiling can be constructed to a pitch of up to 70 degrees from the Horizontal. Ceiling systems can incorporate the following approved features: Access Panels, Bulkheads, Light & Luminaire fittings, Plumbing Pipe penetrations, Power Cable penetrations, Loaded penetrations, Control Joints, Protection to Steel & Timber Beams, Changes in ceiling slope direction and a variety of Perimeter Details. Thermal or acoustic insulation (max. 3kg/m2) may be placed above ceiling.

Fire Ratings Boral Plasterboard FRL 30/30/30 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and covered by fire opinion FCO-0568. Boral Plasterboard FRL 60/60/60 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 736, SI 1761, SI 1891,TR 238(L), TR 336(L) and FSH-0597. These systems are covered and validated by fire opinion FCO-1658. Boral Plasterboard FRL 90/90/90 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 710, SI 736, SI 1761 and SI 1891. These systems are covered and validated by fire opinion FCO-1856.

• • •

One layer of 16mm Boral Firestop Plasterboard has a mass of approximately 13kg/m2; One layer of 13mm Boral Firestop Plasterboard has a mass of approximately 10.5kg/m2; Rondo Furring Channel Part No. 129 has a mass of approximately 0.5kg/m; Rondo Top Cross Rail Part No. 128 has a mass of approximately 0.7kg/m.

Systems Mass The following table shows mass calculations based on the above approximations: Plasterboard Layers 1 x 16mm 2 x 16mm 2 x 13mm 3 x 13mm 1 x 13mm 1 x 16mm 3 x 16mm 4 x 16mm

Plasterboard Mass 13kg/m2 26kg/m2 21kg/m2 31.5kg/m2

Suspension System Mass*

23.5kg/m2

25.5kg/m2

39kg/m2 52kg/m2

41kg/m2 54kg/m2

15kg/m2 28kg/m2 23kg/m2 33.5kg/m2

* The suspension system mass is approximate

only and based on a Rondo steel suspension system with Top Cross Rails @ 1200mm centres, Furring Channels @ 600mm centres and an average drop.

Decoration The ceiling system is flush jointed to provide a smooth, continuous surface ideal for all forms of decoration. Care must be taken to apply paint or other finishes strictly in accordance with the manufacturer’s instructions.

Fire-rated Ceiling Systems

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Standard Ceilings Design

General Construction Details Movement joints should be put at building construction joint locations. Control joints should be spaced at not more than 12 metre max. centres in either direction (15 metre centres where there is perimeter relief). Refer to "Joints" for details. Specifiers should be aware of the likelihood of frame movement due to structural, thermal and seasoning effects on direct fixed plasterboard ceilings. Where necessary specify a furred system to minimise the risk of ceiling damage due to these effects. Caution: Boral Plasterboard ceiling systems are not designed to support the weight of maintenance personnel, additional plant or storage of goods.

Materials • • •

• • • • •

16mm or 13mm Boral Firestop Plasterboard recessed edge. Boral Plasterboard Jointing Compound (as preferred from the Boral Plasterboard Jointing Compound range). Boral Plasterboard Cornice 55mm, 75mm & 90mm if required, applied using Boral Plasterboard Cornice Adhesive or Cornice Adhesive Mid Set. Perforated paper tape. Approved fire-rated sealant for caulking gaps at ceiling perimeters. Boral Cornice Adhesive. Screws and nails as specified. Rivets (all steel).

Refer to Safety Data Sheets, available from Boral Plasterboard Sales Offices, or the container labelling, when handling relevant products. All materials used in the construction of Boral Plasterboard ceiling systems must be carefully stored and protected on the construction site. Plasterboard is to be stacked flat and protected from moisture. Boral Firestop Plasterboard must not be used where it will be exposed to excessive moisture. In addition, damaged plasterboard sheets and accessory materials must not be used.

Fasteners Screws All screws are to AS3566- 1988 corrosion class 1 and are defined as follows: • Type S is a double start, needle point, bugle head gypsum screw for fixing to steel gauges of up to 0.80mm BMT. • Type D is a double start, drill point, bugle head gypsum screw for fixing to steel gauges from 0.80mm to 2.00mm BMT.

•

•

Type W is a single start, needle point, bugle head gypsum screw for fixing to hardwood and softwood framing. In some instances double start screws are permissible (refer to Boral Plasterboard for details). Type L is a single start, needle point, bugle head gypsum screw for fixing plasterboard to plasterboard.

Note that correct screw length is critical when fastening to resilient furring channel to avoid acoustic bridging. Nails Although nail lengths specified are minimum, care should be taken when using longer nails to avoid bending in hardwoods or popping of plasterboard with unseasoned timber. Fastener Selection The following tables show the correct selection of screws and nails for the construction of Boral Plasterboard ceiling systems. Screws - Plasterboard to Ceiling Frame Number of Layers of Plasterboard x Thickness

Timber Frame Type W Screws

Steel Frame Type S or Type D Screws

1 x 13mm 1 x 16mm 2 x 13mm 2 x 16mm

6 - 9 x 32mm 6 - 9 x 40mm 6 - 9 x 50mm 6 - 9 x 60mm

3 x 13mm

8 - 8 x 60mm

3 x 16mm

8 - 8 x 75mm

6 - 18 x 25mm* 6 - 18 x 30mm 6 - 18 x 40mm 6 - 18 x 45mm 7 - 16 x 50mm Type S only 8 - 15 x 60mm Type S only

1 x 13mm + 1 x 16mm

6 - 9 x 50mm

6 - 18 x 40mm

Screw identification is given as: (min. gauge) - (threads/inch ±1) x (min. length). * For ease of construction with framing steel gauges of less than 0.8mm BMT, use 30mm minimum length screws.

Screws - Plasterboard to Plasterboard Number of Layers of Plasterboard x Thickness Plasterboard A

Plasterboard B

Type L Screws for Fixing Plasterboard A to B

1 x 13mm 1 x 16mm 1 x 16mm

Min. 13mm Min. 16mm Min. 2 x 16mm

10 - 8 x 32mm 10 - 8 x 38mm 6 - 8 x 50mm

Screw identification is given as: (min. gauge) - (threads/inch ±1) x (min. length)

Fire-rated Ceiling Systems

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Standard Ceilings Design

Rondo Fixing and Suspension Components

Fasteners (continued)

Manufactured by Rondo Building Services Ltd. and marketed by Boral Plasterboard:

Nails - Plasterboard to Timber Frame Number of Layers of Plasterboard x Thickness

Smooth Annular Ring Shank Gold Shank and Passivated Uninail

40mm¹ 30mm² 50mm¹ 50mm² 65mm¹,² 65mm¹,²

1 x 13mm 1 x 16mm 2 x 13mm 2 x 16mm 3 x 13mm 3 x 16mm 1 x 13mm + 1 x 16mm

30mm¹ 30mm²

Galvanised 2.8mm Diameter

40mm¹ 30mm² 50mm¹ 40mm² 50mm¹,² 65mm¹,² 75mm x 3.75¹,² 75mm x 3.75¹,²

65mm¹,² 1 = Softwood

50mm¹,²

- Furring Channel - Top Cross Rail - Joiner to Top Cross Rail - Direct Fixing Clips - Suspension Bracket - Suspension Rod - Wall Trim - Adjustable Suspension Clip - External Corner Bead - All Steel Angle 35x35x0.75 - All Steel Angle 50x50x0.75 - Rondo Control Joint - Shadow Line Trim

See illustrations below.

2 = Hardwood

Top Cross Rail No. 128

Direct Fixing Clip No. 226

Furring Channel No. 129

Direct Fixing Clip No. 394

Suspension Clip No. 2534

Suspension Bracket No. 274

Corner Bead No. P32

129 128 139 237, 226, 394 247 or 274 121 DU05 2534 P32, P01 553 554 P35 P50

Suspension Bracket No. 247

Shadow Line Trim No. P50

Control Joint No. P35

Rondo Fixing and Suspension Components

Joiner No. 139

Direct Fixing Clip No. 237

Steel Angle No. 554

Wall Trim No. DU05

Suspension Rod No.121

Fire-rated Ceiling Systems

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Standard Ceilings Design

Installation Ceiling systems may be constructed by fixing layers of 16mm and/or 13mm Boral Firestop Plasterboard in either, a Suspended, Direct Fixed or Direct Clipped (furred) system as per details under "Standard Construction". Furring channel and framing supports to be taken to and provided within 50mm of ceiling perimeter - min 15mm end clearance to walls. Allowance should be made for an expansion gap at the rate of 3mm per 1 metre run in abutting Furring Channels and Top Cross Rails. All permitted and approved fire-rated penetrations or features must be installed and caulked in accordance with the details provided in this manual.

Suspended Systems Ceiling framing and design to be in accordance with the requirements of A.S.2785. • Attach suspension rods to suspension rod brackets that are anchored to structural framing or concrete soffit, at 1200mm maximum centres in each direction. Note: Each suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads. • Attach suspension clips to top cross rails, and fit suspension clips to rods. Adjust the rails to a true and level plane. • Position furring channels at 600mm maximum centres and attach to top cross rails with a locking clip at each intersection. • Join lengths of furring channel with furring channel joiners, ensuring the joins are staggered. • Extra suspension components must be provided to support light fittings, bulkheads and other fixtures. Spans and spacings may be reduced if required.

Direct Clipped (Furred) Systems Position furring channels at 600mm maximum centres and attach channels to structural framing with direct fixing clips at 1200mm maximum centres, or to concrete soffit with anchor clips fastened to soffit at 1200mm maximum centres. Ensure that furring channels are fixed to a true and level plane. Spans and spacings may be reduced if required.

Direct Fixed Systems Where fixing direct to timber or steel framing without furring channel, framework should not exceed 600mm spacing. Spans and spacings may be reduced if required.

Plasterboard Application for Systems using 1, 2 or 3 Layers of Plasterboard. 1. Fix Boral Firestop Plasterboard across the Furring Channel, Timber or Steel framing. 2. Butt (end) joints on the first layer (uppermost sheet) not formed on framing members should be back-blocked as described under "Back-blocking". 3. The first layer (uppermost) of Firestop plasterboard sheets are fastened at 200mm max. centres in the field of board and at 150mm max. centres on ends and edges (staggered). 4. Additional layers of Firestop plasterboard sheets are fixed in the same manner as the first layer but with joints staggered between layers min. 200mm. 5. Additional layer butt joints not formed on a framing member are screw laminated to the previous layer at 200mm max. centres. 6. Tape and finish face sheet with preferred Boral Plasterboard jointing system.

Plasterboard Application for FRL 120/120/120 Systems Using 4 Layers of Plasterboard. 1. Fix the upper two layers as in steps 1 to 5 above. 2. Fix Rondo P.N. 129 furring channels at 600mm centres to Rondo P.N. 237 clips @ 1200mm centres fixed through upper two layers and into the primary framing with min.12 x 60mm roofing screws. 3. Fix first of bottom two layers of Boral Firestop Plasterboard across the secondary furring channel framing at 200mm max. centres in the field of board and at 150mm max. centres on ends and edges (staggered). 4. Butt or end joints on this layer not formed on framing members should be backblocked as described under "Back-blocking". 5. The second of the two bottom layers of Firestop plasterboard sheets is fixed in the same manner as the first layer but with joints staggered between layers min. 200mm. 6. Screw laminate bottom layer butt joints not formed on framing members at 200mm centres to previous layer with 10x38 Type L screws. 7. Tape and finish face sheet with preferred Boral Plasterboard jointing system.

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Standard Ceilings Design Back-blocking

Single Layer

Back-blocking is a mandatory fixing requirement where specified in the Australian Standard AS/NZS 2589.1:1997. Failure to provide back-blocking installed as per AS/NZS 2589.1:1997 may result in liability for any associated costs relating to maintenance and/or rectification caused by jointing defects.

Multiple Layers Butt or end joints on the first layer (uppermost sheet) not formed on framing members must be dry back-blocked as follows: • Cut back-blocking pieces from 16mm Boral Firestop Plasterboard to sizes no less than 200mm wide and in lengths that will fit between the framing members. • Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge. • Fix ceiling sheet to back-blocks with 10 x 38mm Type L screws at 200mm max. centres. • Fix the next ceiling sheet and screw laminate to back blocks. Back-blocking pieces of 16mm Boral Firestop Plasterboard min. 200mm wide fixed with 10 x 38 Type L screws @ 200mm max. centres

For single layer systems, back-blocks to be fixed with cornice adhesive and screws

Where system comprises only one layer, back-blocks must be additionally fixed with cornice adhesive as follows: • Cut back-blocking pieces from Boral Plasterboard sheet to sizes no less than 200mm wide and in lengths that will fit loosely between the framing members. • Prepare Boral Plasterboard Cornice Adhesive in a clean container with sufficient water to make a stiff paste of smooth consistency. • Apply adhesive over the full face of the backblocking pieces using a notched spreader to form beads of 6mm x 6mm at approximately 20mm centres and at right angles to the joint. • Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge. • Fix ceiling sheets to back-blocks with 10 x 38mm Type L screws at 200mm max. centres. • Immediately fix the next ceiling sheet and screw laminate to back blocks as previously.

Architectural Specification Boral Plasterboard Ceilings shown in the relevant drawings shall consist of materials supplied by Boral Plasterboard, fixed and finished in accordance with the instructions contained in Boral Plasterboard Technical Manuals and in TecSYS - a comprehensive technical catalogue on CD-ROM (see back page for details). As drawings are updated from time to time, users are advised to check drawing currency before adopting the procedures and details noted thereon.

Framing Top layer of Boral Firestop Plasterboard

200mm min. EQ

100mm min.

Joints in other layers staggered min. 200mm from previous layer

EQ Form plasterboard dry back-block behind all end joints not formed on framed members

Laminate back-block to back face of ceiling with 10 x 38 Type L screws @ 200mm max. centres

Note: Where illustrations throughout this manual show a Suspended Ceiling System, a Direct Fixed or Furred System may also be used.

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System Selector Table

Ceiling Variations using 1, 2 or 3 Layers of Plasterboard. Fire ratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90 and FRL 120/120/120 may be achieved with various combinations of 1, 2 and 3 layers of Boral Firestop Plasterboard. Where illustrations throughout this manual give the option of using either 1, 2 or 3 layers of plasterboard, refer to the table below to select the system giving the fire and acoustic ratings required.

System Selector Table Fire Rating (FRL)

Resistance to Incipient Spread of Fire #

Acoustic Rating (Rw)* DFS FS SS PO

Plasterboard Layers

System

FRL 30/30/30

30mins.

37dB 52dB 52dB 30dB

1 layer of 16mm Boral Firestop Plasterboard

CS17

60mins.

39dB 55dB 55dB 32dB

1 layer of 13mm and 1 layer of 16mm Boral Firestop Plasterboard

CS21

60mins.

39dB 56dB 56dB 33dB

2 layers of 16mm Boral Firestop Plasterboard

CS15

60mins.

40dB 57dB 57dB 34dB

3 layers of 13mm Boral Firestop Plasterboard

CS15

30mins.

39dB 55dB 55dB 32dB

2 layers of 13mm Boral Firestop Plasterboard

CS20

60mins.

39dB 56dB 56dB 33dB

2 layers of 16mm Boral Firestop Plasterboard

CS15

90mins.

42dB 59dB 59dB 35dB

3 layers of 16mm Boral Firestop Plasterboard

CS10

90mins.

42dB 59dB 59dB 35dB

3 layers of 16mm Boral Firestop Plasterboard

CS22

FRL 60/60/60

FRL 90/90/90

FRL 120/120/120

DFS = Direct Fixed System with nominal cavity depth of 190mm between ceiling and floor. FS = Furred System with nominal cavity depth of 220mm between ceiling and floor and Rondo P.N. 226 Direct Fixing Clip fixed to side of joist with furring channel fixed to clip. SS = Suspended System with nominal cavity depth of 350mm between ceiling and floor. PO = Plasterboard Only. The Rw rating is for the number of plasterboard layers specified. * Acoustic ratings are3. based on ceiling insulation of minimum 100mm thick polyester or glass wool @ 14kg/m # Also protection to loaded steel or timber beams above ceiling.

Ceiling Variations using 4 Layers of Plasterboard. A fire rating of FRL 120/120/120 with a 120min. resistance to incipient spread of fire is achieved using four layers of 16mm Boral Firestop Plasterboard - 2 bottom layers and 2 top layers separated by a secondary furring channel framing (System CS6). For details, refer to Boral Plasterboard TecASSIST or TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover).

Caution Boral Plasterboard ceiling systems are not designed to support the weight of construction or maintenance personnel, additional plant or storage of goods.

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System Selector FRL30/30/30 System No.

Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

CS17 0.5 Hour 30/30/30 30 mins resistance to incipient spread of fire

OR

OR

CSIRO Opinion FCO-0568

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 1 layer of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. 1 layer of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members - Longitudinal joints (along recessed edges) and Butt or End Joints not formed on framing members should be back-blocked - Back blocks to be screw laminated - Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max.centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.

Fire-rated Ceiling Systems

10 System No.

System Selector FRL 60/60/60 Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Acoustic Suspended Ceiling under Fire-rated Ceiling System

CS12 1 Hour 60/60/60 60 mins resistance to incipient spread of fire CSIRO Opinion FCO-0467

OR

System is designed to cater for fixing a suspended acoustic ceiling from a fire-rated ceiling above. For furred system - fire-rated ceiling is fixed to purlins supporting a metal deck roof at 1200mm centres using extended Rondo clips P.N.394 fastened direct to web of purlin. For direct fixed system - fire-rated ceiling is fixed directly to purlins. Ceiling (furred) : 2 layers of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel at 600mm max. centres. - Firestop is fixed across supporting member with all end joints fixed on frame, or dry back-blocked or screw fastened to previous layer. Acoustic ceiling suspended from clips screwed to furring channel.

Total mass of suspended acoustic ceiling under not to exceed 12 kg/ m2 for Direct Fixed System or 4.95kg/m2 for Direct Clipped (Furred) System.

Refer to Boral Plasterboard TecASSIST for additional details.

Ceilings are not designed for human access or construction and maintenance loadings.

CS14 1 Hour 60/60/60 60 mins resistance to incipient spread of fire CSIRO Opinion FCO - 0794 & FCO - 0668

Upgrade of Existing Fibrous Plaster Ceiling 2 layers of 16mm Boral Firestop screw attached to Rondo steel furring channels spaced at 600mm centres. Furring Channels clipped to Rondo anchor clips fixed through existing fibrous plaster ceiling to existing framing with 50mm Type W screws for soft wood framing or 40mm Type S or Type D for steel framing. Anchor clips spaced at 1200mm max. centres staggered - joints staggered - first layer butt joints may fall on one furring channel across the full width of the ceiling - face layer butt joints located on additional short lengths of furring channel and staggered- face joints finished.

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System Selector FRL 60/60/60 System No.

Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

CS20 1 Hour 60/60/60 30 mins resistance to incipient spread of fire

OR

OR

CSIRO Opinion FC0-1658

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 2 layers of 13mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. 2 layers of 13mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. System provides 30 mins. protection to loaded steel or timber beams above ceiling.

Fire-rated Ceiling Systems

12 System No.

System Selector FRL 60/60/60 Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

CS21 1 Hour 60/60/60 60 mins resistance to incipient spread of fire

OR

OR

CSIRO Opinion FC0-1658

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 1 layer of 13mm and 1 layer of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. First layer of 13mm and second layer of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. System provides 60 mins. protection to loaded steel or timber beams above ceiling.

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System Selector FRL 90/90/90 System No.

Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

CS15 11⁄2 Hour 90/90/90 60 mins resistance to incipient spread of fire

OR

OR

CSIRO Opinion FC0-0675

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 2 layers of 16mm or 3 layers of 13mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. 2 layers of 16mm or 3 layers of 13mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details.

Fire-rated Ceiling Systems

14 System No.

System Selector FRL 90/90/90 Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

CS10 1.5 Hour 90/90/90 90 mins resistance to incipient spread of fire

OR

OR

CSIRO Opinion FC0-0703

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 3 layers of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. 3 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. System provides 90 mins. protection to loaded steel or timber beams above ceiling.

Fire-rated Ceiling Systems

15

System Selector FRL 90/90/90 System No.

Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

CS8

Acoustic Suspended Ceiling under Fire-rated Ceiling System

1.5 Hour 90/90/90 90 mins resistance to incipient spread of fire CSIRO Opinion FCO-0605

OR

System is designed for fixing a suspended acoustic ceiling from a fire-rated ceiling above. Fire-rated ceiling is a direct fix ceiling system to timber or steel beams or purlins using 3 layers of 16mm Boral Firestop Plasterboard - 1 bottom layer and 2 top layers for furred system or 3 layers for direct fixed system. Primary System (furred): Top 2 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm maximum centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm.

Total mass of suspended acoustic ceiling under not to exceed 12 kg/m2 for direct fixed system or 4.95kg/m2 for furred system. Ceilings are not designed for human access or for construction and/or maintenance loadings. System provides 90 mins. protection to loaded steel or timber beams above ceiling.

Secondary System (furred): Bottom layer of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel at 600mm maximum centres. Firestop is fixed across supporting member with all end joints fixed on frame or dry back-blocked. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a minimum radius of 6000mm - brace as required. Flooring over; Concrete Slab or minimum 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Acoustic ceiling suspended from clips screwed to furring channel. Refer to Boral Plasterboard Sales Offices for additional details.

Fire-rated Ceiling Systems

16 System No.

System Selector FRL 120/120/120 Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

CS6

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

2 Hour 120/120/120 120 mins resistance to incipient spread of fire CSIRO Opinion FC0-0730

OR

OR

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 4 layers (2 bottom & 2 top) of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. Primary System: Top 2 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max.centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Secondary System: Bottom 2 layers of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel or resilient channel at 600mm max. centres. Firestop is fixed across supporting member with all end joints fixed on frame dry back-blocked or screw laminated to previous layer. Stagger all joints min. 200mm. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. System provides 120 mins. protection to loaded steel or timber beams above ceiling. Refer to Boral Plasterboard TecASSIST for further details.

Fire-rated Ceiling Systems

System Selector FRL 120/120/120 System No.

Fire-Rating FRL (mins)

17

Description and Physical Data

(Test Ref.)

CS22

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

2 Hour 120/120/120 90 mins resistance to incipient spread of fire

OR

OR

CSIRO Opinion FC0-1658

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 3 layers of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System. 3 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. System provides 90 mins. protection to loaded steel or timber beams above ceiling.

Fire-rated Ceiling Systems

18 System No.

System Selector FRL 120/120/120 Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

CS7

Acoustic Suspended Ceiling under Fire-rated Ceiling System

2 Hour 120/120/120

System is designed for fixing a suspended acoustic ceiling from a fire-rated ceiling above. Fire-rated ceiling is a direct fix ceiling system to timber or steel beams or purlins using 4 layers (2 bottom & 2 Top) of 16mm Boral Firestop Plasterboard.

120 mins resistance to incipient spread of fire CSIRO Opinion FCO-0605

Primary System: Top 2 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Secondary System: Bottom 2 layers of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel at 600mm max. centres. Firestop is fixed across supporting member with all end joints fixed on frame, or dry backblocked or screw laminated to previous layer. Stagger all joints min. 200mm. Total mass of suspended acoustic ceiling under not to exceed 4.95kg/m2 Ceilings are not designed for human access or for construction and/or maintenance loadings.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Acoustic ceiling suspended from clips screwed to furring channel. System provides 120 mins. protection to loaded steel or timber beams above fire-rated ceiling. Refer to Boral Plasterboard TecASSIST for additional details.

Fire-rated Ceiling Systems

19

Standard Construction Direct Fixed Systems 35mm min. Roofing or floor

Steel or timber floor or ceiling framing member with or without steel battens @ 600mm max. centres

OR

1, 2 or 3 Layers of Boral Firestop Plasterboard as required

1, 2 or 3 layers of Boral Firestop Plasterboard fixed transverse to framing @ 600mm max.centres. All joints staggered min. 200mm.

Timber or steel roof or floor framing @ 600mm max. centres

End joints formed on framing members and staggered, otherwise end joints on first layer must be back blocked. Where applicable, second and third layers should be screw laminated to previous layer @ 200mm max. centres.

200mm

150mm

Screws 10mm to 16mm from edges

Tape and finish face layer only - with selected Boral Plasterboard system

Plasterboard fasteners to be 200mm max. centres in field and 150mm max. centres on end joints - staggered. Refer to Page 4 for fastener details.

Note: Systems using 1, 2 or 3 layers of Boral Firestop Plasterboard provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system.

Fire-rated Ceiling Systems

20

Standard Construction

Direct Clipped (Furred) Systems 35mm min.

Roofing or floor

Rondo P.N. 226 Clip @ 600mm max. centres fastened to steel framing member with min. two 10 x 16 Type D screws or equivalent

Steel or timber floor or ceiling frame

Rondo P.N. 226 or 394 Clip @ 600mm max. centres fastened to timber framing member with min. two 2.8 x 30 plasterboard nails or equivalent

OR

Rondo P.N. 129 Furring Channel @ 600mm max. centres 1, 2 or 3 Layers of Boral Firestop Plasterboard as required

1, 2 or 3 layers of Boral Firestop Plasterboard fixed transverse to Furring Channels @ 600mm max.centres. All joints staggered min. 200mm.

Rondo P.N. 129 Furring Channel @ 600mm max. centres

Timber or steel roof or floor framing @ 1200mm max. centres

End joints formed on Furring Channels and staggered, otherwise end joints on first layer must be back blocked. Where applicable, second and third layers should be screw laminated to previous layer @ 200mm max. centres.

Rondo P.N. 237, 226 or 394 Clip @ 1200mm max. centres

200mm

150mm

Screws 10mm to 16mm from edges

Tape and finish face layer only - with selected Boral Plasterboard system

Plasterboard fasteners to be 200mm max. centres in field and 150mm max. centres on end joints - staggered. Refer to Page 4 for fastener details.

Note: Systems using 1, 2 or 3 layers of Boral Firestop Plasterboard provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system.

Fire-rated Ceiling Systems

21

Standard Construction Suspended Systems Rondo P.N. 247 Suspension Bracket anchored to concrete soffit to engineer’s detail

Rondo P.N. 274 Suspension Bracket fastened to steel member with min. two 10 x 16 Type D screws or equivalent

Rondo P.N. 121 Suspension Rods @ 1200mm max. centres

35mm min.

Steel or timber floor or ceiling frame

OR

Rondo P.N. 274 Suspension Bracket fastened to timber framing with min. two 2.8 x 30 plasterboard nails or equivalent

OR

Rondo P.N. 2534 Clip Rondo P.N. 129 Furring Channel @ 600mm max. centres

Rondo P.N. 128 Top Cross Rail @ 1200mm max. centres

1, 2 or 3 layers of Boral Firestop Plasterboard as required

1, 2 or 3 layers of Boral Firestop Plasterboard fixed transverse to Furring Channels @ 600mm max.centres. All joints staggered min. 200mm.

Roofing or floor

Rondo P.N. 139 Joiner End joints formed on Furring Channels and staggered, otherwise end joints on first layer must be back blocked. Where applicable, second and third layers should be screw laminated to previous layer @ 200mm max. centres.

Rondo P.N. 121 Suspension Rods @ 1200 mm max. centres

1200mm max. Rondo P.N. 2534 Suspension Clip

1200mm max. Rondo P.N. 139 Joiner Clip

Rondo P.N. 128 Top Cross Rail @ 1200mm max. centres Rondo P.N. 129 Furring Channel @ 600mm max. centres

200mm

150mm

Screws 10mm to 16mm from edges

Tape and finish face layer only - with selected Boral Plasterboard system

Plasterboard fasteners to be 200mm max. centres in field and 150mm max. centres on end joints - staggered. Refer to Page 4 for fastener details.

Note: Systems using 1, 2 or 3 layers of Boral Firestop Plasterboard provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system. Refer to Rondo catalogue - "Suspended Grid Design".

Fire-rated Ceiling Systems

22

Standard Construction

Acoustic Suspended Ceilings Note: In each of the following acoustic suspended systems, suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads.

Rondo P.N. 394 Clip @ 1200mm max. centres fastened to steel framing member

0o to 70o

35mm min.

Timber or steel framing member 2 x 16mm or 3 x 13mm Boral Firestop Plasterboard

Rondo P.N. 129 Furring Channel @ 600mm max. centres 2 x 16mm or 3 x 13mm Boral Firestop Plasterboard Rondo P.N. 247 Suspension Bracket screw fixed to Furring Channel with 12 x 50 type 17 roofing screw

Roofing or floor

Direct Fastened

Furred

Rondo P.N. 247 Suspension Bracket screw fixed to framing with 12 x 75 type 17 roofing screw Suspension Rods @ 1200mm max.centres Acoustic ceiling total mass not to 2 exceed 12Kg/m for direct fastened system

Acoustic ceiling total mass not to exceed 4.95Kg/m2 for furred system

FRL 60/60/60 - System CS12

Rondo P.N. 237 Clips @1200mm max. centres fixed to joist or purlin with 12 x 60 type 17 roofing screw

o

35mm min.

o

Roofing or floor

0 to 70

Timber or steel framing member 3 x 16mm Boral Firestop Plasterboard

2 x 16mm Boral Firestop Plasterboard Rondo P.N. 129 Furring Channel @ 600mm max. centres

Rondo P.N. 247 Suspension Bracket screw fixed to framing with 12 x 75 type 17 roofing screw

1 x 16mm Boral Firestop Plasterboard Furred Rondo P.N. 247 Suspension Bracket screw fixed to furring channel with 12 x 40 type 17 roofing screw

Direct Fastened

Suspension Rods @ 1200mm max.centres Acoustic ceiling total mass not to 2 exceed 12Kg/m for direct fastened system

Acoustic ceiling total mass not to 2 exceed 4.95Kg/m for furred system

FRL 90/90/90 - System CS8

Fire-rated Ceiling Systems

23

Cable and Loaded Penetrations Roofing or floor Batten as required Framing Member Rondo P.N. 274 Suspension Bracket

Cable

Rondo P.N. 121 Suspension Rod

Fyre Spring by Promat Fyreguard. Refer to Promat Fyreguard Pty Ltd. for details.

Rondo P.N. 2534 Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner

Rondo P.N. 129 Furring Channel

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Promaseal Fire Mastic by Promat Fyreguard

Cable Penetration Detail Roofing or floor Batten as required Framing Member Rondo P.N. 274 Suspension Bracket

Two 100 x 100mm pieces of 16mm Boral Firestop with lower piece slotted for cable

Rondo P.N. 121 Suspension Rod

Cable

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 129 Furring Channel

Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner

Cable set in Boral Cornice Adhesive or approved fire-rated sealant

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Alternative Cable Penetration Detail

Roofing or flooring

Batten

Framing member

Rondo P.N. 274 Suspension Bracket

Steel Suspension Rod and Bracket to engineer’s details

Rondo P.N. 121 Suspension Rod

Rondo P.N. 2534 Suspension Clip Rod set in Boral Cornice Adhesive or approved fire-rated sealant

Rondo P.N. 128 Top Cross Rail

Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel

1, 2 or 3 Layers of Boral Firestop Plasterboard as required 6-10mm gap

Typical Loaded Penetration Details

Fire-rated Ceiling Systems

24

Pipe Penetrations Roofing or flooring

Batten

Cage by Promat Fyreguard (refer to Promat Fyreguard tests) 50 x 20mm Promaseal IBS by Promat Fyreguard

Framing member

Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 129 Furring Channel

Promaseal Fire Mastic by Promat Fyreguard

520mm 13mm max.

Rondo P.N. 128 Top Cross Rail

15mm min.

Rondo P.N. 139 Joiner

View AA

1 or 2 layers of Boral Firestop Plasterboard as required

A

A

100mm max. diam. Copper Pipe

Typical Copper Pipe Penetration Detail - FRL 30/30/30 and FRL 60/60/60 Roofing or flooring

Batten

Framing member Rondo P.N. 274 Suspension Bracket

uPVC Pipe independently supported above ceiling

Rondo P.N. 121 Suspension Rod Rondo P.N. 2534 Suspension Clip

Steel Toggle Bolt

Rondo P.N. 128 Top Cross Rail Rondo P.N. 129 Furring Channel Rondo P.N. 139 Joiner Retrofit Fyre Collar by Promat Fyreguard. Refer to Promat Fyreguard Pty Ltd. for details.

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Typical PVC Pipe Penetration Detail

Roofing or flooring

Batten

Framing member

Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod

Water pipe independently supported above ceiling

Rondo P.N. 2534 Suspension Clip

Approved fire grade sealant

Rondo P.N. 128 Top Cross Rail Rondo P.N. 129 Furring Channel

Rondo P.N. 139 Joiner

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Sprinkler head

Typical Sprinkler Pipe Penetration Detail

Fire-rated Ceiling Systems

25

Ceilings to a Radius

Roofing or flooring Batten as required

Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod

Suitable screw to prevent suspension clip sliding up Top Cross Rail

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 129 Furring Channel

Taped Joint

Rondo P.N. 139 Joiner riveted to Top Cross Rail 6-10mm

ius . rad min erboard mm st 6000 e of pla c to fa

Caulk all perimeter junctions with Boral Cornice Adhesive

Rondo P.N. 128 Top Cross Rail or steel angle by others rolled to required radius

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Fire-rated Ceiling Systems

26

Change of Pitch Roofing or flooring

Batten as required Framing member Rondo P.N. 121 Suspension Rod @ 1200mm centres max.

Rondo P.N. 274 Suspension Bracket

Angle Cleat

Rondo P.N. 2534 Suspension Clip

Continuous Angle 0.75 B.M.T. Galv. M.S. 50mm min. leg length

Rondo P.N. 128 Top Cross Rail

20mm max.

600mm max.

Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel

Rondo P.N. 139 Joiner pop riveted to Top Cross Rail 1, 2 or 3 layers of Boral Firestop Plasterboard as required

Cornice Adhesive Tape and set joint 0-90

0

Detail A Roofing or flooring

Batten as required

Framing member

Rondo P.N. 274 Suspension Bracket

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 121 Suspension Rod @ 1200mm centres max.

Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner pop riveted to Top Cross Rail

Angle Cleat 0-90

Continuous Angle 0.75 B.M.T. Galv. M.S. 50mm min. leg length

0

Rondo P.N. 129 Furring Channel

1, 2 or 3 layers of Boral Firestop Plasterboard as required Cornice Adhesive

600mm max. 20mm max.

Tape and set joint

Detail B Roofing or flooring Batten as required

Framing member Suitable screw on high side of each clip to prevent suspension clip sliding up Top Cross Rail

Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod @ 1200mm centres max. Rondo P.N. 2534 Suspension Clip

20mm max.

20mm max.

Rondo P.N. 128 Top Cross Rail

Angle Cleat Continuous Angle 0.75 B.M.T. Galv. M.S. 50mm min. leg length

Rondo P.N. 139 Joiner riveted to Top Cross Rail

Rondo P.N. 129 Furring Channel 0-180

0

Tape and set joint

Detail C

1, 2 or 3 layers of Boral Firestop Plasterboard as required Cornice Adhesive

Fire-rated Ceiling Systems

27

Bulkheads Roofing or flooring Framing Member

Rondo P.N. 274 Suspension Bracket

Rondo P.N. 2534 Suspension Clip

Rondo P.N.121 Suspension Rod

Rondo P.N. 139 Joiner pop rivetted to Top Cross Rail

Additional Rondo P.N.121 Suspension Rod

Rondo P.N. 128 Top Cross Rail

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 129 Furring Channel

25 x 25 x 0.75mm BMT Galvanised Angle pop rivetted to Top Cross Rail

50mm x 50mm x 0.75mm Galvanised Steel Angle

Rondo P.N. 128 Top Cross Rail 1, 2 or 3 layers of Boral Firestop Plasterboard as required

600mm max. drop

Rondo P.N. 129 Furring Channel

Corner Bead if Required

Typical Bulkhead - Detail A

Roofing or flooring Framing Member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod Additional Rondo P.N. 121 Suspension Rod

Rondo P.N. 2534 Suspension Clip

75 x 75 x 0.75mm BMT Continuous Galvanised Steel Angle

Rondo P.N. 129 Furring Channel

Rondo P.N. 128 Top Cross Rail

Rondo P.N. 139 Joiner

600mm max. drop

Rondo P.N. 129 Furring Channel

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Corner Bead if Required

Typical Bulkhead - Detail B

Fire-rated Ceiling Systems

28

Bulkheads Skylight Dome

Skylight Framing Flashing Upstand Framing Roofing as required

Timber or Steel Stud Frame @ 600mm centres

Roof Battens

Framing Member

Rondo P.N. 274 Suspension Bracket

Rondo P.N. 121 Suspension Rod

600mm max. drop

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Rondo P.N. 2534 Suspension Clip 50 x 50 x 0.75mm continuous galv. Steel Angle

Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral Firestop Plasterboard as required

600mm max. centres

Typical Bulkhead/Lightwell Detail

External Corner Bead if required

Fire-rated Ceiling Systems

29

Light Recess Flooring or Roof Framing Member Rondo P.N. 121 Suspension Rod spaced to support any additional mass due to light fitting Rondo P.N. 2534 Suspension Clip

Rondo P.N. 274 Suspension Bracket

450mm 100mm

Prefabricated Metal Light Stirrup Light Fitting Box

Rondo P.N. 129 Furring Channel

Rondo P.N. 128 Top Cross Rail

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Support Mounting

Typical Light Recess - Detail A

50mm x 50mm x 0.75mm Galvanised Steel Angles Timber Floor Floor Joist Trimmer Trimmer 1, 2 or 3 layers of Boral Firestop Plasterboard as required

Light Fitting

Typical Light Recess - Detail B

Floor or Ceiling Structure Rondo P.N. 121 Suspension Rod spaced to support any additional mass due to light fitting

Rondo P.N. 274 Suspension Bracket 75 x75 x 0.75mm Galv. Steel Angle 100mm

64CS Stud Frame @ 600mm centres

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 128 Top Cross Rail

50 x 50 x 0.75mm Angle fixed to Stud and Top Cross Rail

Rondo P.N. 129 Furring Channel

Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required

Additional Rondo P.N. 121 Suspension Rod

Light Fitting Box 50 x 50 x 0.75mm Galv. Steel Angle

Typical Light Recess - Detail C

Support Mounting

Fire-rated Ceiling Systems

30

Access Hatch

Additional Top Cross Rail

Rondo P.N. 129 Furring Channel

670mm lengths of Top Cross Rail

Ceiling Furring Channel

A

B

B

A

750mm 900mm

540mm 400mm

50 mm

50 mm

600mm

2 x 13mm Boral Firestop Plasterboard

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Section B-B

50 mm

390mm 300mm

450mm 670mm

Section A-A

Typical Access Hatch - Detail A

50 mm

Fire-rated Ceiling Systems

31

Access Hatch

Roofing or flooring

Batten as required Framing member

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Rondo P.N. 274 Suspension Bracket

FRL 30/30/30 and FRL 60/60/60: 1 layer 16mm Boral Firestop Plasterboard FRL 90/90/90 and FRL 120/120/120: 2 layers 16mm Boral Firestop Plasterboard

10 x 38 Type L screws @ 200mm max. centres

Rondo P.N. 121 Suspension Rod @ 1200mm centres max.

Rondo P.N. 2534 Suspension Clip

Roofing or flooring

Framing member

Rondo P.N. 128 Top Cross Rail

Frame around opening with 25mm x 25mm x 0.75 Galvanised Steel Angle

Rondo P.N. 139 Joiner

Rondo P.N. 129 Furring Channel

1, 2 or 3 layers of Boral Firestop Plasterboard as required

3mm gap

External Corner Beads if required

Max. 500 x 500 Panel

Typical Access Hatch - Detail B

Roofing or flooring

Rondo P.N. 274 Suspension Bracket

Framing member

Rondo P.N. 121 Suspension Rod @ 1200mm centres max.

75mm x 1mm thick Steel Section spot welded to Angles @ 200mm max. centres

Access Hatch framed with Rondo 64CT Track or Timber Section min. 100mm x 50mm fixed to ceiling /roof framing

Type S screws @ 200mm centres securing Access Hatch Assembly to 64mm Track Section

Rondo P.N. 2534 Suspension Clip

Promat Fyreguard Access Hatch max. 500 x 700mm

Rondo P.N. 128 Top Cross Rail

64mm Track Section framing opening fixed to Furring Channel with 25mm Type S screws @ 200mm centres

Rondo P.N. 139 Joiner

Type S screws @ 200mm centres securing Plasterboard to 64mm Track Section FRL 30/30/30:1 x 16mm Boral Firestop Plasterboard FRL 60/60/60:2 x 16mm Boral Firestop Plasterboard

Promat Fyreguard Access Hatch max. 500 x 700mm Rondo P.N. 129 Furring Channel

Typical Access Hatch - Detail C (for up to FRL 60/60/60)

Refer to Promat Fyreguard Pty. Ltd. for installation details.

Corner bead

Fire-rated Ceiling Systems

32

Beam Protection

Roofing or Flooring Framing member

Steel Beam

Rondo P.N. 226 or 394 Direct Fixing Clip

Rondo P.N. 129 Furring Channel

50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required

1, 2 or 3 layers of Boral Firestop Plasterboard as required

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Corner Bead if required 50 x 50 x 0.75mm continuous Galv. Steel Angles

Note: Vertical plasterboard fixed as per ceiling

Furring Channel Stirrups @ 600mm centres

Typical Steel Beam Protection Detail

Roofing or Flooring

Rondo P.N. 129 Furring Channel

Rondo P.N. 226 or 394 Direct Fixing Clip Framing members @ 600mm centres Steel Beam

1, 2 or 3 layers of Boral Firestop Plasterboard as required

50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required

Corner Beads if required

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Furring Channel Stirrups @ 600mm centres

Type S screws as required @ 200mm max. centres

Typical Steel Beam Protection Detail - Perspective View

50 x 50 x 0.75mm continuous Galv. Steel Angles

Fire-rated Ceiling Systems

33

Beam Protection Timber Floor

Framing member Timber Beam Rondo P.N. 226 or 394 Direct Fixing Clip

50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required

Rondo P.N. 129 Furring Channel

1, 2 or 3 layers of Boral Firestop Plasterboard as required

1, 2 or 3 layers of Boral Firestop Plasterboard as required - max. span of 600mm for ceiling layers

Corner Bead if required

Plasterboard Nails as required @ 200mm centres

50mm min.

Typical Timber Beam Protection - Furred System

Type S screws as required @ 200mm max. centres

Framing members @ max. 600mm centres

Roofing or Flooring Rondo P.N. 226 or 394 Direct Fixing Clip

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Rondo P.N. 129 Furring Channel

50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required

Corner Beads if required

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Plasterboard Nails as required @ 200mm centres

Typical Timber Beam Protection - Perspective View - Furred System

Timber Beam

Fire-rated Ceiling Systems

34

Beam Protection

Timber Floor Framing member Timber Beam of not less than 500kg/m3 average density

50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required

1, 2 or 3 layers of Boral Firestop Plasterboard as required

1, 2 or 3 layers of Boral Firestop Plasterboard as required - max. span of 600mm for ceiling layers

Corner Bead if required

Plasterboard Nails as required @ 200mm centres

50mm min.

Typical Timber Beam Protection - Direct Fixed System

Framing members @ max. 600mm centres Roofing or Flooring

1, 2 or 3 layers of Boral Firestop Plasterboard as required

50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required

Corner Beads if required

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Plasterboard Nails as required @ 200mm centres

Typical Timber Beam Protection - Perspective View - Direct Fixed System

Timber Beam of not less than 500kg/m3 average density

Fire-rated Ceiling Systems

35

Joints Roofing or flooring

Framing member Rondo P.N. 274 Suspension Bracket

Rondo P.N. 121 Suspension Rod @ 1200mm max. centres

Minimum 6 x 50 Type L screws to one side only @ 200mm max. centres

Rondo P.N. 2534 Suspension Clip 120mm

1, 2 or 3 layers of Boral Firestop Plasterboard as required

FRL 30/30/30: 1 x 16mm Boral Firestop Plasterboard. FRL 60/60/60 and FRL 90/90/90: 2 x 16mm Boral Firestop Plasterboard.

100mm max.

50mm

20 mm

Rondo P.N. 139 Joiner

Rondo P.N. 129 Furring Channel 20mm max.

View parallel to Furring Channel

Rondo P.N. P35 Expansion Joint Bead if required

FRL 30/30/30: 1 x 16mm Boral Firestop Plasterboard. FRL 60/60/60 and FRL 90/90/90: 2 x 16mm Boral Firestop Plasterboard.

Rondo P.N. 128 or 127 Top Cross Rail

Rondo P.N. 2534 Suspension Clip 120mm 50mm

20 mm

Rondo P.N. 128 or 127 Top Cross Rail Rondo P.N. 129 Furring Channel

Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required

20mm max.

View perpendicular to Furring Channel

Typical Movement Joint Detail

Type L screws @ 200mm centres

Framing

1, 2 or 3 layers of Boral Firestop Plasterboard as required

Approved fire grade sealant

10-12 mm

Note: 1. Locate joint centrally between framing members when parallel to framing. 2. Minimum of one layer of Boral Firestop Plasterboard continuous over joint. 3. Ensure single layer system is back blocked.

Typical Control Joint Detail

Fire-rated Ceiling Systems

36

Perimeter Details Roofing or flooring

Batten as required Framing member

Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod @ 1200mm max. centres

Rondo P.N. 2534 Suspension Clip Rondo P.N. 128 Top Cross Rail

Continuous Rondo P.N. 553 Angle or Steel Stud fastened to wall @ 600mm max. centres

6-10 mm

100mm max.

Rondo P.N. 139 Joiner

Rondo P.N. 129 Furring Channel

Approved Sealant

1 x 16mm Boral Firestop Plasterboard

100mm max.

1 x 16mm Boral Firestop Plasterboard

6-10 mm

Boral Cornice Adhesive

Plasterboard Cornice or taped square set finish

Alternative Detail

Typical Perimeter Detail - FRL 30/30/30

Fire-rated Ceiling Systems

37

Perimeter Details Roofing or flooring Batten as required Framing member

Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod @ 1200mm max. centres

Rondo P.N. 2534 Suspension Clip Rondo P.N. 128 Top Cross Rail 6-10 mm

Continuous Rondo P.N. 553 Angle or Steel Stud fastened to wall @ 600mm max. centres

100mm max.

Rondo P.N. 139 Joiner

Rondo P.N. 129 Furring Channel 2 or 3 layers of Boral Firestop Plasterboard as required

Boral Cornice Adhesive or Ceramic Fibre Blanket or approved sealant

Plasterboard Cornice or taped square set finish

See Alternative Details below

Rondo P.N. 554 Angle 2 or 3 layers of Boral Firestop Plasterboard as required

6-10mm

22mm Promaseal IBS by Promat Fyreguard

Rondo P.N. DU05 Wall Trim

10mm

Shadowline Trim

Wall Trim

Framing

25 x 25mm fillet of Cornice Adhesive

Top Plate 45mm thick

100mm max.

3-10mm

6-10 mm

16mm max.

5mm max. o/hang

Plasterboard Cornice

Rondo P.N. P50 Shadowline Trim

2 or 3 layers of Boral Firestop Plasterboard as required

90mm Plasterboard Cornice

25 x 25mm fillet of Cornice Adhesive

10mm Boral Standard Core Plasterboard

Plasterboard Cornice Detail A

Plasterboard Cornice Detail B

Typical Perimeter Detail - FRL 60/60/60

Cornice Adhesive

Fire-rated Ceiling Systems

38

Perimeter Details Roofing or flooring

Framing member

Rondo P.N. 274 Suspension Bracket

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 121 Suspension Rod @ 1200mm max. centres

Rondo P.N. 128 Top Cross Rail 600mm max.

Continuous Rondo P.N. 553 Angle or Steel Stud fastened to wall @ 600mm max. centres

Rondo P.N. 139 Joiner

6-10mm

Rondo P.N. 129 Furring Channel Approved fire-rated sealant Optional Plasterboard Cornice or taped square set finish

3 x 16mm Boral Firestop Plasterboard

100mm max. 6-10mm

Framing

Cornice Adhesive

Plasterboard Cornice or taped square set finish

3 x 16mm Boral Firestop Plasterboard

Alternative Detail

Typical Perimeter Detail - FRL 90/90/90

Non Fire-rated Ceiling Systems

39

Standard Ceilings Design Introduction

General Construction Details

Boral Plasterboard Non Fire-Rated Ceiling Systems provide a variety of application configurations using 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed as a Suspended, Direct Fixed or Furred System. Note: • These ceiling construction details are not suitable for external ceilings. • Thermal or acoustic insulation (max. 3kg/m2) may be placed above ceiling.

Movement joints should be put at building construction joint locations. Control joints should be spaced at not more than 12 metre max. centres in either direction or 15 metre centres where there is perimeter relief.

Early Fire Hazard Properties Boral Plasterboard Standard Core, tested for early fire hazard properties in accordance with Australian Standard 1530.3 - 1982, recorded the following results: Ignitability (0-20) -14; Smoke Developed (0-10) -2; Spread of Flame (0-10) -0; Heat Evolved (0-10) -1.

Component Mass • • • • •

One layer of 10mm Boral Standard Core Plasterboard has a mass of approximately 6.5kg/m2; One layer of 13mm Boral Standard Core Plasterboard has a mass of approximately 8.5kg/m2; One layer of 10mm Boral Unispan Plasterboard has a mass of approximately 6.7kg/m2; Rondo Furring Channel Part No. 129 has a mass of approximately 0.5kg/m; Rondo Top Cross Rail Part No. 128 has a mass of approximately 0.7kg/m.

Systems Mass The following table shows mass calculations based on the above approximations: Plasterboard Layers 1 x 10mm 1 x 13mm 1 x 10mm Unispan

Plasterboard Mass 6.5kg/m2 8.5kg/m2 6.7kg/m2

Suspension System Mass* 8.5kg/m2 10.5kg/m2 8.7kg/m2

* The suspension system mass is approximate

only and based on a Rondo steel suspension system with Top Cross Rails @ 1200mm centres, Furring Channels @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard) and an average drop.

Decoration The ceiling system is flush jointed to provide a smooth, continuous surface ideal for all forms of decoration. Care must be taken to apply paint or other finishes strictly in accordance with the Manufacturer’s instructions.

Where necessary specify a furred system to minimise the risk of ceiling damage due to frame movement caused by structural, thermal and seasoning effects. Caution: Boral Plasterboard ceiling systems are not designed to support the weight of maintenance personnel, additional plant or storage of goods.

Materials • • •

• • • • •

10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan. Boral Plasterboard Jointing Compound (as preferred from the Boral Plasterboard Jointing Compound range). Boral Plasterboard Cornice 55mm, 75mm & 90mm if required, applied using Boral Plasterboard Cornice Adhesive or Cornice Adhesive Mid Set. Boral Plasterboard Stud Adhesive. Perforated paper tape. An approved caulking compound for caulking gaps at ceiling perimeters. Screws and nails as specified. Rivets (all steel).

Refer to Safety Data Sheets (available from Boral Plasterboard Sales Offices) or the container labelling, when handling relevant products. All materials must be carefully stored and protected on the construction site. Damaged plasterboard sheets and accessory materials must not be used. Plasterboard is to be stacked flat and protected from moisture and must not be used where it will be exposed to excessive moisture.

Rondo Fixing and Suspension Components Manufactured by Rondo Building Services Ltd. and marketed by Boral Plasterboard: 129 127 139 237, 226, 394 247 or 274 121 2534 P32 553 554 P35

- Furring Channel - Top Cross Rail - Joiner to Top Cross Rail - Direct Fixing Clips - Suspension Bracket - Suspension Rod - Adjustable Suspension Clip - Corner Bead - All Steel Angle 35x35x0.75 - All Steel Angle 50x50x0.75 - Rondo Control Joint

Non Fire-rated Ceiling Systems

40

Standard Ceilings Design

Fasteners

Direct Fixed Systems Nails - Timber Frame

Layers of Plasterboard Smooth Shank Annular Ring x Thickness Gold Passivated Shank and Uninail

Galvanised 2.8mm Diameter

40mm¹ 30mm² 40mm¹ 30mm²

30mm¹ 30mm² 30mm¹ 30mm²

40mm¹ 30mm² 40mm¹ 30mm²

1 = Softwood

2 = Hardwood

1 x 10mm 1 x 13mm

Layers of Plasterboard x Thickness

Screws - Timber Frame Screws - Steel Frame

1 x 10mm 1 x 13mm

Type W

Type S or Type D

6 - 9 x 32mm 6 - 9 x 32mm

6 - 18 x 25mm* 6 - 18 x 25mm*

Screw identification is given as: (min. gauge) - (threads/inch ±1) x (min. length). * For ease of construction with framing steel gauges of less than 0.8mm BMT, use 30mm minimum length screws.

Installation Furring channel and framing supports to be taken to and provided within 50mm of ceiling perimeter - min 15mm end clearance to walls.

Suspension Systems •

• •

• •

Attach suspension rods to suspension rod brackets that are anchored to structural framing or concrete soffit, at typically 1200mm centres in each direction. Note: Each suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads. Attach suspension clips to top cross rails, and fit suspension clips to rods. Adjust the rails to a true and level plane. Position furring channels at 600mm maximum centres (see note) and attach to top cross rails with a locking clip at each intersection. Join lengths of furring channel with furring channel joiners, ensuring the joins are staggered. Extra suspension components must be provided to support light fittings, bulkheads and other fixtures. Spans and spacings may be reduced if required.

Direct Clipped (Furred) Systems Position furring channels at 600mm maximum centres (see note) and attach channels to structural framing with direct fixing clips at typically 1200mm centres, or to concrete soffit with anchor clips fastened to soffit at typically 1200mm centres. Ensure that furring channels are fixed to a true and level plane. Longer spans may be used - refer to Manufacturer's details.

Where fixing direct to timber or steel framing without furring channel, framework should not exceed 600mm spacing (see note). Spans and spacings may be reduced if required. Note: Furring channel spacing to be 450mm for 10mm Standard Core Plasterboard.

Plasterboard Application •

Plasterboard may be fixed with nails, screws or a combination of adhesive and fasteners. A combination of adhesive and fasteners is the preferred method for general application. • Fix Boral Plasterboard across the Furring Channel, Timber or Steel framing. • Butt or end joints not formed on framing members should be back-blocked as described under "Back-blocking". • Tape and finish with preferred Boral Plasterboard jointing system. Adhesive/ Fastener Fixing • Apply Boral Plasterboard Stud Adhesive to framing members in daubs measuring 25mm diameter by 15mm high. • Space daubs of adhesive at 230mm maximum centres. • Keep daubs approximately 200mm away from the edges of the sheets and the nail or screw fixing points. • Under slow-drying conditions, keep Boral Plasterboard sheets firm against the adhesive daubs for at least 48 hours. Use temporary blocks fastened through plasterboard to framing members. • Be sure to fix Boral Plasterboard within thirty minutes of applying adhesive. This will avoid skin forming on the adhesive. For the number of nails or screws required, and their fixing points, refer to the following tables and illustrations. Adhesive and Fastener Layout Plasterboard Width

Conventional Spacing

1/3 Spacing

900mm 1200mm 1350mm

FAF/FAF FAAF/FAAF FAAF/FAAF

FAFAF FAFAFAF FAFAFAF

F = Nail or Screw

A = Adhesive

F/F = 2 Nails or 1 Screw

All Mechanical Fixing Layout Minimum Fixing Points per Sheet Width Plasterboard Width

Single Nails

Double Nails or Single Screws

900mm 1200mm 1350mm

6 7 8

4 5 6

Non Fire-rated Ceiling Systems

41

Standard Ceilings Design

Daubs of adhesive 200mm from edge of sheets

4 daubs of adhesive, 25mm dia. x 15mm high, for sheets 1200mm and 1350mm wide

Centre line of sheet

200mm

CL

200mm

CL 50-75mm

CL

Adhesive Fixing

Fixing With Nails Only This method normally applies where adhesive cannot be used - e.g., over existing linings or over a water vapour barrier. •

Keep Boral Plasterboard sheets in firm contact with framing member while nails are being driven. Drive nail heads slightly below the surface of the sheet without puncturing the face linerboard. Along the perimeter of sheets, space nails at between 10mm minimum and 16mm maximum away from the edges and ends of the sheet. Skew-nailing is not permitted.

• •

•

For single nailing, space nails at 200mm maximum centres. For double nailing, space nails at 300mm maximum centres with single nails or single screws at perimeter only.

Double Nailing Only: 50mm - 75mm apart at 300mm max. centres

Centre line of sheets

Fixing With Screws Only Space screws at 300mm maximum centres in field of board and 200mm maximum centres on end joints (staggered). Space screws at 10mm - 16mm from the edges and ends. When screw-fixing single layers of Boral Plasterboard sheets: • Hold plasterboard sheets firmly in place against the framing members while driving in the screws. • Adjust screw gun correctly so as to drive the screw heads below the surface of the sheet without puncturing the face linerboard. • Press tip of screw firmly into the face linerboard before driving it home. • Always drive screws with the shank at right angles to the face of the sheets. • Wherever possible always start from the centre of the sheet towards the outer edges. • Position screws on adjacent edges opposite each other.

Screws Only: 300mm max. centres

Single Nailing Only: 200mm max. centres

CL CL CL

Along perimeter of sheet, single nails or single screws only at 10mm - 16mm from edge

Stagger butt joints between framing

Screw or Nail Fixing

Non Fire-rated Ceiling Systems

42

Standard Ceilings Design

Back-blocking Back-blocking is a mandatory fixing requirement where specified in the Australian Standard AS/NZS 2589.1:1997. Failure to provide back-blocking installed as per AS/NZS 2589.1:1997 may result in liability for any associated costs relating to maintenance and/or rectification caused by jointing defects. Back-blocking substantially reduces call-backs, in particular for cracking and peaking joints.

Recessed Joints in Ceilings Any area containing three or more recessed joints must be back-blocked as follows (see Figure 1): • Cut back-blocking pieces from Boral Plasterboard sheet to sizes no less than 200mm wide and in lengths that will fit loosely between the framing members. • Prepare Boral Plasterboard Cornice Adhesive in a clean container with sufficient water to make a stiff paste of smooth consistency. • Apply adhesive over the full face of the backblocking pieces using a notched spreader to form beads of 6mm x 6mm at approximately 20mm centres and at right angles to the joint. • Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge. • Fix the next sheets immediately after the blocks are in place. Back-blocks in ceilings may be cemented into position from within the roof cavity using a more fluid adhesive mix and pouring it onto the top of the ceiling join before seating the back-blocks onto the adhesive. Back-blocking pieces of Boral Plasterboard sheet 200mm wide min. glued with Cornice Adhesive

Back-blocking Ceilings Under Floors and Low-Pitched Roofs This can be carried out from the floor below, one step at a time as follows (see Figure 2): • Fix the first Boral Plasterboard sheet. • Cut the next sheet. • Apply Boral Plasterboard Cornice Adhesive to back-blocks and place them between framing members along the full length of the sheet already fixed. • Immediately after all blocks are in place, install the next sheet. • Continue as above across the entire ceiling area. • When complete, and the adhesive has thoroughly set, apply the flush-jointing.

Ceiling joist or bottom chord of roof truss

Back-blocks in place

Boral Plasterboard ceiling Wall

Figure 2.

Back-blocking Butt Joints Back-block butt joints as follows (see Figure 3): • Fix ceiling sheets with ends butted neatly together. The butt joint should fall within 50mm of the mid-span point between framing members. • Use battens and packers to support and deflect the sheet ends upwards about 2mm.

Roof truss Boral Plasterboard ceiling

Figure 1.

Non Fire-rated Ceiling Systems

43

Standard Ceilings Design Back-block

Architectural Specification

Rafter or joist

Temporary battens Plasterboard

Cornice adhesive Packing strip

Temporary nailing

Figure 3.

Back-blocking Dos & Don'ts • • •

• • •

Back-blocking must be installed at the fixing stage. Joints must not be set prior to back-blocking. Do not use plaster in its advanced setting state or any dry mix compound for backblocking. Dry or partly dry compounds combined with ceiling temperatures may cause premature dry-out and reduced bond. Ensure back-blocking is completely dry prior to the taping process. Do not use stud adhesive for back-blocking. Back-blocking strips should not be tight between framing members.

Boral Plasterboard Ceilings shown in the relevant drawings shall consist of materials supplied by Boral Plasterboard, fixed and finished in accordance with the instructions contained in Boral Plasterboard Technical Manuals and in TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover for details). As drawings are updated from time to time, users are advised to check drawing currency before adopting the procedures and details noted thereon.

Non Fire-rated Ceiling Systems

44 System No.

System Selector Fire-Rating FRL (mins)

Description and Physical Data

(Test Ref.)

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

CS18 Non Fire Rated Ceiling

OR

OR

Suspended Systems

OR

Direct Fixed Systems

OR

Furred Channel Systems

System provides a variety of application configurations using 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed as a Suspended, Direct Fixed or Furred System. 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed to a supporting framework of timber / steel at 600mm (450mm for 10mm Boral Plasterboard Standard Core) max. centres. - Plasterboard is fixed across supporting members -Longitudinal joints (along recessed edges) and Butt or End Joints not formed on framing members should be back blocked - Back blocks to be laminated with daubs of Cornice Adhesive - Fixing to framework to be as a follows: Fixed directly to timber / steel beams or purlins at 600mm (450mm for 10mm Boral Plasterboard Standard Core) max. centres - or - Fixed to furring channel system at 600mm max. centres that has been -( a) clipped or direct fixed to a steel or timber floor / ceiling frame at 1200mm max. centres - or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a conc. soffit, steel or timber floor / ceiling frame. Flooring over - Concrete Slab or min. 12mm plywood or particle board fixed direct to frame. Roofing over -Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.

Non Fire-rated Ceiling Systems

45

Standard Construction Direct Fixed Systems

35mm min.

Roofing or floor

1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan

Back blocks laminated to face sheet with cornice adhesive on all longitudinal joints and on butt or end joints

Steel or timber floor or ceiling framing member with or without steel battens @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard).

OR

Note: All joints not formed on a framing member must be back blocked

End joints formed on framing members and staggered

Timber or steel roof or floor framing @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard).

200mm 300mm

Screws 10mm to 16mm from edges

Tape and finish with preferred Boral Plasterboard system

1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan fixed transverse to ceiling joists.

Screw fastening is illustrated using min. 6 x 32 Type W screws for timber or 6 x 25 Type S or Type D screws for steel. Screws to be max. 300mm centres in field and 200mm max. centres on end joints (staggered). Refer to “Plasterboard Application” on Page 40 for details of adhesive or nail fixing.

Non Fire-rated Ceiling Systems

46

Standard Construction

Direct Clipped (Furred) Systems 35mm min.

Roofing or floor

Rondo P.N. 226 Clip @ 600mm max. centres fastened to steel framing member with min. two 10 x 16 Type D screws or equivalent

OR

Rondo P.N. 129 Furring Channel @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard).

Back blocks laminated to face sheet with cornice adhesive on all longitudinal joints and on butt or end joints

Steel or timber floor or ceiling frame

Rondo P.N. 226 or 394 Clip @ 600mm max. centres fastened to timber framing member with min. two 2.8 x 30 plasterboard nails or equivalent 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan

Note: All joints not formed on a Furring Channel must be back blocked

Rondo P.N. 129 Furring Channel @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard).

Timber or steel roof or floor framing @ 1200mm max. centres

End joints formed on Furring Channels and staggered Rondo P.N. 226 or 394 Clip @ 1200mm max. centres

200mm 300mm

Screws 10mm to 16mm from edges

Tape and finish with preferred Boral Plasterboard system

1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan fixed transverse to Furring Channels

Screw fastening is illustrated using min. 6 x 25 Type S or Type D screws. Screws to be max. 300mm centres in field and 200mm max. centres on end joints (staggered). Refer to “Plasterboard Application” on Page 40 for details of adhesive or nail fixing.

Non Fire-rated Ceiling Systems

47

Standard Construction Suspended Systems Rondo P.N. 274 Suspension Bracket fastened to steel member with min. two 10 x 16 Type D screws or equivalent

Rondo P.N. 247 Suspension Bracket anchored to concrete soffit to engineer’s detail

35mm min.

Roofing or floor

Steel or timber floor or ceiling frame

Rondo P.N. 121 Suspension Rods @ 1200mm max. centres

OR

OR

Rondo P.N. 2534 Clip Rondo P.N. 129 Furring Channel @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard)

Rondo P.N. 128 Top Cross Rail @ 1200mm max. centres

1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan

Back blocks laminated to face sheet with cornice adhesive on all longitudinal joints and on butt or end joints

Rondo P.N. 139 Joiner

Note: All joints not formed on a Furring Channel must be back blocked

1200mm typical Rondo P.N. 2534 Suspension Clip

Rondo P.N. 274 Suspension Bracket fastened to timber framing with min. two 2.8 x 30 plasterboard nails or equivalent

1200mm typical Rondo P.N. 139 Joiner

Rondo P.N. 121 Suspension Rods @ 1200 mm typical centres

Rondo P.N. 128 Top Cross Rail @ 1200mm typical centres Rondo P.N. 129 Furring channel @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard)

200mm 300mm

Tape and finish with preferred Boral Plasterboard joining system

Screws 10mm to 16mm from edges

1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan fixed transverse to Furring Channels

Screw fastening is illustrated using min. 6 x 25 Type S or Type D screws. Screws to be max. 300mm centres in field and 200mm max. centres on end joints (staggered). Refer to “Plasterboard Application” on Page 40 for details of adhesive or nail fixing.

Non Fire-rated Ceiling Systems

48

Typical Perimeter and Bulkhead Details

Rondo P.N. 129 Furring Channel

Rondo P.N. 127 Top Cross Rail

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 139 Joiner

Rondo P.N. 139 Joiner

Rondo P.N. 121 Suspension Rod

Pop rivet

Boral Plasterboard Cornice

1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required

Rondo P.N. 127 Top Cross Rail

Continuous Galvanised Steel Angle

Rondo P.N. 129 Furring Channel

Pop rivet

Corner Bead if required

Rondo P.N. 129 Furring Channel

Rondo P.N. 127 Top Cross Rail

1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required

Rondo P.N. 139 Joiner

Rondo P.N. 139 Joiner pop rivetted to Top Cross Rail

Rondo P.N.121 Suspension Rod

Wall angle trim

1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required

Rondo P.N. 127 Top Cross Rail

Typical Perimeter Details

Rondo P.N. 2534 Suspension Clip

Rondo P.N. 129 Furring Channel

Galvanised Angle pop rivetted to Top Cross Rail

Corner Bead if required 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required

Typical Bulkhead Details

QuietZone™ Ceiling Systems

49

Introduction Introduction

Installation

The QuietZone™ systems have been designed to reduce unwanted noise from specific areas of a home. There are three QuietZone™ ceiling systems designed to suit varying budgets and design considerations - these three systems are identified as "Quiet", "Quieter" and "Quietest".

The Boral Acoustic Ceiling Mount is designed for use in Rondo's Key-Lock Ceiling Suspension System. Refer to the Rondo catalogue for the spanning and spacing options for furring channels and primary rails.

Building a QuietZone™ ceiling requires a little more care and attention to detail than standard systems. Each component in a QuietZone™ System must be securely fixed, necessary services strategically placed and all plasterboard perimeter edges and openings adequately sealed.

Components

Note: QuietZone™ is a registered trademark of Amatek Limited trading as Insulation Solutions.

Boral Acoustic Ceiling Mount The Boral Acoustic Ceiling Mount is used in the QuietZone™ systems and provides a cost effective solution to impact sound insulation for ceilings direct fixed or suspended to either concrete soffits, timber floor joists, roof purlins and the like. The Acoustic Ceiling Mount significantly reduces transmission of impact sound from many common sources including: • • •

footfalls; rain; and equipment

Other typical applications for the Boral Acoustic Ceiling Mount are in multi-residential apartment construction, cinemas, and areas below a plant room.

Advantages • • • • • • •

Easy and quick to install; Suspended application does not need additional fixings; Acoustic Ceiling Mount can be slid along the top cross rail which allows for easy repositioning; Minimises low frequency “thumps” generated from footfalls on timber floors; Fully tested; Rubber Element is colour coded for easy identification of load range; and High load capacity minimises number of Acoustic Ceiling Mounts required per square metre.

Direct Fix Application • • •

Furring Channel Clip; Rubber Element; and Screw (supplied by others): - 14-10 x min. 65 mm Type 17 roof screw into timber; - 12 or 14 gauge x min. 45 mm drill point roofing screw into light gauge steel; or - “Tapcon” screw into concrete.

Procedure Assemble the mount as shown in the following illustration.

Ceiling Support Structure

Furring Channel Clip Rubber Element showing colour coding dot Fixing Screw (with 25mm dia. Steel washer where fire rating required) Rondo Furring Channel

1. Screw fix the mount via the central hole in the rubber element. For fire-rated ceilings, a 25 mm diameter x 2 mm steel washer is required under the fastener head. 2. Use a suitable power tool with an appropriate hex driver and tighten the fastener to a point where there is no compression of the rubber element. Check the pull-out capacity of fastener to ensure correct size is selected. 3. Clip furring channel into the Furring Channel Clip.

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Acoustic Ceiling Mount

Suspended Application

Load Ratings

Components

For both applications, the rubber element comes in a variety of load bearing capacities and is colour coded accordingly. The appropriate element must be used to support the weight of plasterboard being used in the ceiling.

• • •

Furring Channel Clip Interchange Clip Rubber Element

Procedure Assemble the mount as shown in the following illustration.

As each layer of plasterboard is fixed to the furring channel, the rubber element will deflect under the load. A maximum deflection of 5 mm will result when the maximum load, as indicated in the following table, is reached. Allowance should be made for deflection when setting out ceiling heights.

Rondo Top Cross Rail

Colour Max. Load Coding in kg Blue dot 17 White dot 25

Furring Channel Clip

Static Deflection 5mm 5mm

Performance The Boral Acoustic Ceiling Mount has been acoustically tested for airborne and impact sound insulation in both the direct fix and the suspended application. Acoustic ratings for the assembly details illustrated below are shown in the following table.

Rubber Element showing colour coding dot Interchange Clip

Rondo Furring Channel

1. Clip the Interchange Clip into the Top Cross Rail. 2. Clip furring channel into the Furring Channel Clip.

Plasterboard Fixing

Floor Covering

Rw

IIC

Direct to joist

Bare

39

32

Direct via Boral Acoustic Ceiling Mount

Bare

57

54

Direct via Boral Acoustic Ceiling Mount

Carpet and underlay

57

82

Suspended via Boral Acoustic Ceiling Mount

Bare

57

55

Suspended via Boral Acoustic Ceiling Mount

Carpet and underlay

57

81

19mm thick chipboard floor sheeting

190 x 45mm F7 timber joists @ 450mm centres

Boral Acoustic Ceiling Mount direct fixed to or suspended from joists

ACI R2.5 glasswool blanket

Furring Channel clipped into Acoustic Ceiling Mount @ 600 mm max. centres

Two layers 16mm Boral Firestop plasterboard fixed to furring channel

Assembly Details FRL 60/60/60

Note: An FRL 90/90/90 system is also available using 2 layers of enhanced firegrade plasterboard. Contact your Boral Plasterboard Sales Office for details.

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Acoustic Selector System Number and Assembly Details

Floor Covering

QZ4

A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor joists @ 450mm or 600mm centres. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts(1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 1 layer of 10mm Boral Plasterboard SoundStop™screw fixed to furring channel. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed.

A

B

A

Floor/ Ceiling Depth mm

287

B C

Rating

With Insulation (Test Ref.)

Rw

Insulation

IIC*

50 (AO100) 44 50 (AO100) 62 50 (AO100) 44

(AO100)

54 (AO100) 49 54 (AO100) 68 54 (AO100) 49

(AO100)

59 (AO100) 54 59 (AO100) 74 59 (AO100) 54

(AO100)

(AO100) (AO100)

75 mm Noise Control Batts (glass wool @ nominal 14 kg /m3)

C Quiet Ceiling System

QZ5

A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor joists @ 450mm or 600mm centres. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts(1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 2 layers of 10mm Boral Plasterboard SoundStop™- first layer screw fixed to furring channel, second layer adhesive/screw fixed to first layer. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed.

A

B

A

297

B C

(AO100) (AO100)

75 mm Noise Control Batts (glass wool @ nominal 14 kg /m3)

C Quieter Ceiling System

QZ6

A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor joists @ 450mm or 600mm centres. 2 layers of 10mm Boral Plasterboard SoundStop™ to underside of floor between joists and held in place with cleats nailed to side of joists. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts(1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 2 layers of 10mm Boral Plasterboard SoundStop™- first layer screw fixed to furring channel, second layer adhesive/ screw fixed to first layer. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed.

A

B

A B C

297

(AO100) (AO100)

75 mm Noise Control Batts (glass wool @ nominal 14 kg /m3)

C Quietest Ceiling System

The Impact Insulation Class (IIC) shown as a single number representing impact insulation. * (1) Resilient channel, at 450mm centres directly fixed to underside of joists, may be used instead of furring channel fixed with acoustic ceiling mounts. Use of resilient channel will result in lower Rw and IIC ratings.

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QuietZone™ Installation

Quiet Ceilings The "Quiet" ceiling system consists of one sheet of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. • • •

•

Fix Furring Channel to ceiling joists at 450mm centres. For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix ceiling mount to every second joist. Conventionally fasten single layer of Boral SoundStop to Furring Channel with combination stud adhesive and supplementary fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel. Floor/ceiling cavity is filled with 75mm noise control batts.

QuietZone™ performance • Rw 50 - Loud speech can be heard but not understood. • IIC 62 - With floor covering of carpet and underlay, walking is heard as low thump.

For ceiling joists @ 450mm centres, fix ceiling mount to every third joist. For joists @ 600mm centres, fix ceiling mount to every second joist. Flooring Floor joists TM

75mm Noise Control Batts

One layer of Boral Plasterboard SoundStop conventionally fixed to Furring Channels

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QuietZone™ Installation Quieter Ceilings

The "Quieter" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. • • • •

•

Fix Furring Channel to ceiling joists at 450mm centres. For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix ceiling mount to every second joist. Mechanically fasten first layer of Boral SoundStop to Furring Channel with screws across sheet width at 300mm max. centres. Second layer is fixed to first using combination stud adhesive and mechanical fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel. Floor/ceiling cavity is filled with Insulation Solutions’ 75mm Noise Control Batts™.

QuietZone™ performance • Rw 54 - Very hard to hear loud speech. • IIC 68 - With floor covering of carpet and underlay, heavy walking heard as low thump.

For ceiling joists @ 450mm centres, fix ceiling mount to every third joist For joists @ 600mm centres, fix ceiling mount to every second joist

Flooring

Floor joists

TM

75mm Noise Control Batts

300mm min overlap

First layer of Boral Plasterboard SoundStop screw fastened to Furring Channels Daubs of Stud Adhesive across width of sheet at Furring Channel locations Second layer of Boral Plasterboard SoundStop

Screw along centreline of sheet

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QuietZone™ Installation

Quietest Ceilings The "Quietest" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. Two additional layers of 10mm Boral Plasterboard SoundStop are fixed to underside of flooring with cleats, ensuring a snug fit between joists. • • • • •

•

Fix Furring Channel to ceiling joists at 450mm centres. For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix ceiling mount to every second joist. Fasten two layers of 10mm Boral Plasterboard SoundStop to underside of flooring with cleats. Mechanically fasten first layer of Boral SoundStop to Furring Channel with screws across sheet width at 300mm max. centres. Second layer is fixed to first using combination stud adhesive and mechanical fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel. Floor/ceiling cavity is filled with Insulation Solutions’ 75mm Noise Control Batts™.

QuietZone™ performance • Rw 59 - Loud speech cannot be heard. • IIC 74 - With floor covering of carpet and underlay, heavy walking heard as very low thump.

For ceiling joists @ 450mm centres, fix ceiling mount to every third joist For joists @ 600mm centres, fix ceiling mount to every second joist 2 x 10mm layers of Boral Plasterboard SoundStop to underside of flooring. Hold in place with plasterboard Floor joists cleats nailed to side of floor joists TM

75mm Noise Control Batts

Flooring

300mm min overlap

First layer of Boral Plasterboard SoundStop screw fastened to Furring Channels Stud Adhesive daubs across width of sheet at Furring Channel locations Second layer of Boral Plasterboard SoundStop

Screw along centreline of sheet

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Guarantee

Products manufactured and supplied by Boral Australian Gypsum Limited (BAGL) A.C.N. 004 231 976, trading as Boral Plasterboard, are guaranteed to be of consistent quality and free from any defects. Boral Plasterboard products must be installed using the components and accessories specified and in accordance with the instructions detailed in Boral Plasterboard’s technical literature. Our products are manufactured to suit the requirements of the building industry in Australia. Boral Plasterboard may limit its liability under this guarantee to, at its option, the replacement or payment of the cost of replacing OR supplying equivalent or payment of the cost of supplying equivalent OR the repair or payment of the cost of repairing products found to be defective.

Important Note

The technical information contained within this manual was correct at the time of printing. Building Systems and details are, however, subject to change. To ensure the information you are using is current, Boral Plasterboard recommends you review the latest building information

available electronically on TecSYS (our technical catalogue on CD) or the Boral Plasterboard Website. Alternatively, contact your nearest Boral Plasterboard Sales Office or TecASSIST (see details below).

Through TecASSIST Boral Plasterboard is demonstrating its commitment to providing excellent technical service and support to design, building and construction professionals Australia wide. A free-call architectural support line, TecASSIST is available to provide sound advice on all matters relating to drywall plasterboard construction. Combining years of professional experience with the latest design information and technology, the TecASSIST team has the skills to help you. Boral Plasterboard TecASSIST phone line is open to receive calls from 8:30am to 4:30pm Monday to Friday, Melbourne time (Victorian public holidays excepted).

FREE-CALL 1800 811 222 24 hour fax: (03) 9645 1812 email: [email protected].

Queensland 733 Nudgee Road Northgate 4013 Telephone (07) 3215 2244 Fax (07) 3215 2299

Western Australia 53 Attwell Street Landsdale 6065 Telephone (08) 9400 2666 Fax (08) 9302 1133 ACT 7 Barrier Street Fyshwick 2609 Telephone (02) 6280 4243 Fax (02) 6280 5816

New South Wales 3 Thackeray Street Camellia 2142 Telephone (02) 9638 0571 Fax (02) 9638 5557 South Australia 119-121 Bedford Street Gillman 5013 Telephone (08) 8240 8888 Fax (08) 8341 1004 Victoria 676 Lorimer Street Port Melbourne 3207 Telephone (03) 9214 2138 Fax (03) 9646 1912

Export Department 676 Lorimer Street Port Melbourne 3207 Telephone (03) 9214 2138 Fax (03) 9646 1109

www.boral.com.au © Boral Australian Gypsum limited 2001

Tasmania 93 Albert Road Moonah 7009 Telephone (03) 6278 9966 Fax (03) 6278 9865 Northern Territory Cnr Coonawarra Road & Mataram Street (PO Box 38245) Winnellie 0820 Telephone (08) 8984 4484 Fax (08) 8984 3778