Date
Inquiry

In an effort to reduce heat islands, the car park for this hotel project is covered. All of the building car park is at ground level (there is no basement). The car park cover is made up of both the hotel building and a podium area that extends out from the hotel. The roof area includes: Podium Roof: 1. Green roof area - 394m2 2. Hardscaped area - 832m2 (The hardscaped area is in two parts. An area on one side of the building for pedestrian use and an area at the rear of the building which contains a vehicular ramp where cars will drive over the corner of the site) 3. Total podium roof area (1+2) = 1226m2 Building Roof: 4. Total footprint (including stairs & plant) - 1084m2 5. Total footprint (excluding stairs & plant) - 836m2 Can the podium roof (including the green roof) be included in the total roof surface for this project?

Ruling

The podium deck, which covers on-grade parking, cannot be considered a roof area for the purposes of this credit. CIR Ruling dated 9/24/2001 rules that the top deck of an above-grade parking structure is to be considered non-roof impervious area. If the podium deck covered conditioned space, then the deck could be considered as a roof (for portions not being used for parking). Applicable Internationally.

Internationally Applicable
On
Campus Applicable
Off
Credits