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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A green ro<strong>of</strong> test rig was set up to compare the rainfall run<strong>of</strong>f <strong>of</strong> <strong>an</strong> extensive green ro<strong>of</strong> <strong><strong>an</strong>d</strong>a perspex p<strong>an</strong>el (to replicate a PV p<strong>an</strong>el). A 10 degree ro<strong>of</strong> <strong>an</strong>gle was specified for a shallowflat pitch ro<strong>of</strong>. Guttering was placed on the test rig to collect <strong>an</strong>y run<strong>of</strong>f <strong><strong>an</strong>d</strong> this wasmeasured using measuring cylinders.Figure 38: Green Ro<strong>of</strong> Test Rig for Rainfall <strong>Run<strong>of</strong>f</strong><strong>The</strong> total area <strong>of</strong> the ro<strong>of</strong> was 1.2m 2 , with one half being the sedum bl<strong>an</strong>ket <strong><strong>an</strong>d</strong> the other halfthe Perspex p<strong>an</strong>el. <strong>The</strong> sedum bl<strong>an</strong>ket was placed in <strong>an</strong> impervious raised frame, whichallowed for run<strong>of</strong>f collection. <strong>The</strong> same sedum bl<strong>an</strong>ket was used as for the thermalperform<strong>an</strong>ce.Niall Carroll Page 61<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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