Green Roofs
Local Law 92 and 94 FAQ
Beginning November 15, 2019, all new buildings and alterations of
existing buildings where the entire existing roof deck or
roof
assembly is being replaced must provide a sustainable
roofing zone covering 100% of the roof. The sustainable roof must
include a solar photovoltaic system generating at
least 4kW, a green roof system, or a combination of
the two. Vertical or horizontal enlargements must also comply with
these requirements.