Int. No. 1032-A
By Council Members Espinal, The Speaker (Council Member Johnson), Levin, Constantinides, Richards, Levine, Ampry-Samuel, Cohen, Rivera, Rosenthal, Rodriguez, Lander, Kallos, Chin, Brannan, Gibson, Menchaca, King and Ayala
Title
A Local Law to amend the administrative code of the city of New York and the New York city building code, in relation to requiring that the roofs of certain buildings be covered in green roofs or solar photovoltaic electricity generating systems
Body
Be it enacted by the Council as follows:
Section 1. Exception 12 of section 28-101.4.3 of title 28 of the administrative code of the city of New York is amended by adding a new exception 12.4 to read as follows:
12.4 Sustainable roofs. Work involving the replacing of an entire existing roof deck or roof assembly shall comply with section 1511.2 of the New York city building code.
? 2. Section BC 1502.1 of the New York city building code is amended by adding a new definition of "sustainable roofing zone" in alphabetical order to read as follows:
SUSTAINABLE ROOFING ZONE. Areas of a roof assembly where a solar photovoltaic electricity generating system, a green roof system, or a combination thereof, is installed.
? 3. Section BC 1504.9 of the New York city building code, as amended by local law number 141 for the year 2013, is amended to read as follows:
1504.9 Reflectance. Roof coverings on roofs or setbacks with slope equal to or less than two units vertical in 12 units horizontal (17 percent) shall have:
1. A minimum initial solar reflectance of 0.7 in accordance with ASTM C 1549 or ASTM E 1918, and a minimum thermal emittance of 0.75 as determined in accordance with ASTM C 1371 or ASTM E 408; or
2. A minimum SRI of [78] 82 as determined in accordance with ASTM E 1980.
Roof coverings on roofs or setbacks with slope greater than two units vertical in 12 units horizontal (17 percent) shall have:
1. A minimum initial solar reflectanc...
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