Nyc Dob Roof Deck Memo

When scuppers are used for secondary emergency overflow roof drainage the quantity size location and inlet elevation of the scuppers shall be sized to prevent the depth of ponding water from exceeding that for which the roof was designed as determined by section 1503 4 1 scuppers shall not have an opening dimension of less than 4 inches 102 mm.

Nyc dob roof deck memo.

Nyc roof deck regulations. 5 prevention of interior fire spread 504 1 339 fire segregation of occupancies 504 2 340 fire divisions 504 3 341 fire separations 504 4 342 openings in fire divisions and separations 504 5 343 ducts pipes and conduits through rated construction 504 6 344 shafts. They are popular as amenity spaces in commercial office buildings for the benefit or convenience of its owners occupants employees customers or visitors. The definition is limited in.

503 7 337 roof coverings 503 8 338 roof structures 504 0 art. The difference between them is that a porch provides access to a building s primary entrance. Nyc roof deck regulations. All work must be filed with the nyc department of buildings dob.

Adding a roof deck to an existing building in nyc requires permits. The department of city planning is writing because it is dcp s view that the use of roofs in commercial districts as open passive recreation space is supported by the text of the new york city zoning resolution the zr and that dob could permit the use of such open space without a zoning text amendment. Roof repair or replacement limited to the roof membrane roof coverings cant strip and any insulation above the roof deck sheathing provided that the new york city energy conservation code does not require additional thermal insulation for the roof. A roof assembly includes the roof deck substrate or thermal barrier insulation vapor retarder and roof covering.

As defined in section 1502 1 of the 2014 new york city building code. A roof deck would be filed with the dob either through an alteration type 1 alt 1 or alteration type 2 alt 2. Dob provides new guidelines for rooftop terraces in nyc apr 19 2018 in new york city rooftops and terrace spaces should put a smile on the faces of building owners and tenants alike. New york ny the new york city department of buildings dob announced that effective today local law 92 of 2019 and local law 94 of 2019 require all new buildings and existing buildings undergoing certain major roof renovations to have a solar photovoltaic system a green roof system or a combination of the two.

These systems must cover 100 percent of any applicable roof. Nyc building code 3300 governs construction safety and applies to decks and porches.