Assignment Green Roof

Appropriate Design Elements And Soil Selection for GreenRoofs in Texas

INTRODUCTION Population growth • Greatly impact the trend of urbanisation

Effect • Logistical and environmental pressure on urban centres

Solution • Maximise the quality of urban life and explore new efficiencies

Green roofs benefits • Shifting urban environment ranging from improving air quality to reducing electrical bills

AIM AND OBJECTIVE Aim The aim of this study is to determine the characteristics and possibility of native barren soil as a green roof media in green roof design.

Objectives This study has two primary goals: – Inform the bio mimicry design process by describing the soils of the Walnut Barrens and Goodland Barrens ecosystems – Monitor barrens and commercial performance as green roof media

soils’

hydrologic

METHODOLOGY SOIL SAMPLING – Soil from Walnut barren and Goodland barren ecosystem will be sampled from variety of field sites for laboratory analysis

EXPERIMENTAL DESIGN – Several test modules will be built to standard the native soil against the commercial media, and to test the methods of increasing infiltration rates – Three test modules will be built for each treatment to provide redundancy and increase study area

TREATMENT – Bare Native soil – Commercial Green Roof – Barren Soil with Gravel Mulch – Barren Soil with Artificial Rock Mulch

EXPECTED RESULTS •

Barrens soils is most likely expected to be a possible media for green or living roofs

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Predicted to retain more rainwater than the commercial medium

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Lightweight aggregates could lighten the native soil but must be in the correct ratio of aggregate to soil for weight reduction

WORK SCHEDULE