High-reflectance and vegetated roofs | U.S. Green Building Council

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High-reflectance and vegetated roofs

REQSS7o13 | Possible point


Option 2. High-reflectance and vegetated roofs

Use roofing materials that have an SRI equal to or greater than the values in Table 1 for a minimum of 75% of the roof area of all new buildings within the project; or install a vegetated (“green”) roof for at least 50% of the roof area of all new buildings within the project. Combinations of SRI-compliant and vegetated roofs can be used provided they satisfy the equation in Option 3.

Table 1. Minimum solar reflectance index value, by roof slope

Roof slope SRI
Low (≤ 2:12) 78
Steep (> 2:12) 29

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