Our project comprises a commercial office tower with an associated podium for carparking. As part of the architectural design, a non-load bearing laminated glass canopy will be constructed from the main office tower and extend over the ground floor public plaza. The canopy will also partly cover the podium. The top deck of the podium will be carparking, and therefore the canopy will in park cover this carparking. Please can you confirm whether this glass canopy should be considered as a \'roof\' under SS-C7.2, and as a glass structure whether it should be exempt from SRI calculations?
Yes, the glass canopy can be excluded from SRI roof requirements under SSc7.2 as it covers an unconditioned outdoor space, not a building. Per NCv2.2 SSc7.1 CIR ruling dated 2/14/2008, the glass canopy can be excluded from SRI requirements under SSc7.1 if parking is placed underground or under deck, so long as the exposed parking area is less than or equal to 50 percent of the total parking surface. Applicable Internationally.