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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<strong>The</strong> mineral content <strong>of</strong> the substrate consists <strong>of</strong> recycled crushed brick <strong><strong>an</strong>d</strong> exp<strong><strong>an</strong>d</strong>ed clayshale <strong><strong>an</strong>d</strong> the org<strong>an</strong>ic component is composted pine bark. It has a pH value <strong>of</strong> 6.5 – 7 <strong><strong>an</strong>d</strong> themoisture retention fleece is made from 80 % m<strong>an</strong>-made <strong><strong>an</strong>d</strong> 20% org<strong>an</strong>ic recycled fibres. <strong>The</strong>thickness – excluding vegetation – is 28 mm <strong><strong>an</strong>d</strong> the saturated weight is 44 kg/m 2 .Once installed, the sedum bl<strong>an</strong>ket requires little mainten<strong>an</strong>ce with bi<strong>an</strong>nual checks for deadvegetation <strong><strong>an</strong>d</strong> blockage <strong>of</strong> drainage outlets.For more information on the Bauder XF301 Sedum Bl<strong>an</strong>ket see Appendix 1.For this project, a NDC waterpro<strong>of</strong> membr<strong>an</strong>e was used instead <strong>of</strong> the recommended Bauder<strong>The</strong>rm<strong>of</strong>ol PVC system for ease <strong>of</strong> installation.7.12 NI USB-9211<strong>The</strong> NI USB-9211 measuring device is designed specifically for thermocouple measurements<strong><strong>an</strong>d</strong> acquires <strong><strong>an</strong>d</strong> logs up to four ch<strong>an</strong>nels <strong>of</strong> thermocouple data.Figure 23: NI USB-9211 Measuring DeviceIt was used to acquire the under ro<strong>of</strong>, substrate, pl<strong>an</strong>t <strong><strong>an</strong>d</strong> ambient air temperature.For further technical information on the NI USB-9211 see the NI website.Niall Carroll Page 47<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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