Darien Library Sustainable Features

Gold LEED certification Geothermal heating and cooling Will save 48% of the energy of a typical code-compliant building Natural, local materials Non-toxic materials Natural lighting in all spaces Multi-level lighting controls Biofiltration of storm water Site irrigation from geothermal wells Detention of all storm water on site

DARIEN LIBRARY

57,000 sf building

SUSTAINABLE FEATURES Prepared by Peter Gisolfi Associates

STAFF

STAFF

1

FIRST FLOOR

Road

Ceiling tiles throughout entire level

▲ Natural Lighting ▲ Natural Ventilation

Main Building

Main Street

Power Library

SYSTEMS/EQUIPMENT

Reading Courtyard

Traditional Library

SPACE

UNFINISHED SPACE

■ ■ ■ ■ ■

Lighting Control Water-Efficient Irrigation Radiant Floor Heating Energy-Efficient Elevator Water-Efficient Fixtures

MATERIALS

Recycled Content ● Carpet ● Ceiling Tile ● Cork Flooring ● Structural Concrete

Parking

Parking

View

Ce m et ery

GEOTHERMAL HVAC

FEATURES

Gallery

Children’s Library

Informal “Green”

N

N

Local / Regional Materials ● Slate Roofing ● Stone

STAFF

Indoor Environmental Quality ● Low-VOC Paint ● Wood Backing Panel

HVAC

L

LOWER LEVEL

Ceiling tiles throughout entire level Structural concrete throughout entire level

(Urea-formaldehyde-free composite)

STAFF

HVAC

MEZZANINE

M

Ceiling tiles throughout entire level Structural concrete throughout entire level

STAFF

SECOND FLOOR

2

Ceiling tiles throughout entire level

NON-IRRIGATED LANDSCAPE Drought-resistant & native plantings

IRRIGATED LANDSCAPE

Using water from diffusion return well No potable water used Can irrigate based on climate condition info.

SC WELL 3

SC WELL 1

SC WELL 4 Diffusion Well

SC WELL 2

INFILTRATION & DETENTION

INFILTRATION & DETENTION

DARIEN LIBRARY BIOFILTRATION SYSTEM

Some wetlands plants have the ability to absorb pollutants. This “biofiltration process” filters stormwater runoff naturally before it is retained, so the water is clean when it is eventually released into the drainage basin. The system for the Darien Library provides for the biofiltration, cleaning and recharging of water on-site, and promotes the sustainability of the system through ease of maintenance. Equally important, it minimizes the release of storm water off-site, a condition that could create flooding and pollution in adjacent and downstream properties. The release of water off-site will be less than it was before the site was developed even though impervious surfaces have increased significantly. View from Hecker Avenue, overlooking biofiltration system

NOTE: LARGE STONES TO BE APPROVED BY LANDSCAPE ARCHITECT PRIOR TO PURCHASE & INSTALLATION 12” to 18” SIZE STONES FITTED INTO A ROUGH WALL +/-18” WITH PLANTING POCKETS, FORM ALONG BASIN EDGE SLOPE FACE SET STONE IN SANDY SLOAM SET STONE INTO GRADE MINIMUM OF 8” TO 12” TO USE LARGE FLAT-FACED STONES TO FORM ROUGH WALL IF FEASIBLE

EL. VARIES 28.42 MAX. 27.92 MIN. FIN. GRADE OF PARKING LOT

2”-3” SHREDDED BARK MULCH ANTICIPATED WATER LEVEL TO POINT OF OVERFLOW

STONE HEADWALL BEYOND

EL. VARIES 29.16 MAX. 27.76 MIN.

NOTE: SEE SITE PLANS AND PLANT LISTS FOR BIORETENTION BASIN CONFIGURATION, FINISH ELEVATIONS AND AREA REQUIRED FOR WATER QUALITY RENOVATION

FILTER FABRIC, TYP.

EL. 23.00 EL. 22.00

1

WATER QUALITY BASIN NOT TO SCALE Section diagram of biofiltration system

12” OF SANDY LOAM TOPSOIL AMENDED WITH LEAF COMPOST