A building has an 11,000 square foot, low sloped (slope is <2:12) roof. 1000 sq

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试卷: LEED AP BD+C模拟题E[查看]
A building has an 11,000 square foot, low sloped (slope is <2:12) roof. 1000 square feet of the roof is covered with mechanical equipment. Which of the following scenarios would earn this building a point for Sustainable Sites credit, Heat Island Effect: Roof? (choose 3)
A: Installing a vegetated roof over 6000 square feet of the roof surface
B: Placing 100% of the parking under the building
C: Installing roofing materials having a SRI of 85 over 7500 sf of the roof surface
D: Installing a vegetated roof over 3000 sf of the roof surface AND roofing materials having a SRI of 78 over an additional 3000
E: Installing a vegetated roof over 4000 sf of the roof surface

参考答案: ACD

本题解释:
Notes:
See the ‘Requirements’ section of NC SSc7.2, Heat Island Effect: Roof
The total roof area is 10,000 sf for this roof (remember to subtract roof areas with equipment)

NC SSc7.2 Option 1- Roof must have a minimum SRI of 78 (low sloped roof) over 75% of roof area
NC SSc7.2 Option 2- Install a vegetated roof over at least 50% of the roof area
NC SSc7.2 Option 3- (Area of SRI Roof/0.75) + (Area of Vegetated Roof/0.5) >= Total Roof Area

Answer (d) calculation- (3000/0.75) + (3000/0.5) = 10,000 sf