The Thermal and Rainwater Runoff Performance of an Extensive ...
The Thermal and Rainwater Runoff Performance of an Extensive ...
The Thermal and Rainwater Runoff Performance of an Extensive ...
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3 Construction <strong>of</strong> Green Ro<strong>of</strong>s<strong>The</strong> construction <strong>of</strong> green ro<strong>of</strong>s is fairly well established <strong><strong>an</strong>d</strong> the various layers typicallyinclude:1 Vegetation Layer2 Substrate3 Geo-textile Filter4 Drainage Layer5 Root Barrier6 Waterpro<strong>of</strong> Layer7 Ro<strong>of</strong> DeckFigure 9: Typical Green Ro<strong>of</strong>Construction (with no insulation)<strong>The</strong> inclusion <strong>of</strong> insulation in green ro<strong>of</strong> construction depends upon the type <strong>of</strong> ro<strong>of</strong> beinginstalled. Ro<strong>of</strong>s are either pitched or flat. A pitched ro<strong>of</strong> is defined as a ro<strong>of</strong> with a slopegreater th<strong>an</strong> 10 degrees [7]. For the majority <strong>of</strong> pitched ro<strong>of</strong>s the insulation is usually placedbeneath the waterpro<strong>of</strong> membr<strong>an</strong>e.Niall Carroll Page 21<strong>The</strong> <strong>The</strong>rmal <strong><strong>an</strong>d</strong> <strong>Rainwater</strong> <strong>Run<strong>of</strong>f</strong> <strong>Perform<strong>an</strong>ce</strong> <strong>of</strong> <strong>an</strong> <strong>Extensive</strong> Green Ro<strong>of</strong> System
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