Green Roof Mandate

Local laws 92 and 94 took effect in new york city in november mandating that any roof undergoing major construction be covered in either solar photovoltaic panels or a green roof system covered.

Green roof mandate.

San francisco was the first local. Areas where dob determines that site conditions are unfavorable to either a solar photovoltaic electricity generating system or a green roof system. Green roof requirements are on the rise. This is believed to be the first successful voter initiative petitioning a green roof mandate to voter ballot.

The proposed green roof requirement is based largely on the city of toronto green roof law but would apply to not only new but also expanded existing buildings with over 25 000 square feet. Green roofs are subject to the design and construction requirements detailed in article iv section 4 02 d in the rules and regulations pdf. A roof assembly with a slope greater than 17 that would accommodate less than 4kw of solar electricity generating capacity. Read this section carefully before submitting architectural structural plumbing electrical or mechanical plans for a green roof.

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems.