Construction codes and the new york city zoning resolution.
Roof weight analysis nyc.
Revised nyc acceleration parameters s s s 1 differs from nys risk based design concept of asce 7 2010 2010 nys building code figure 1613 5 1 maximum considered earthquake ground motion for new york state of 0 2 sec spectral response acceleration 5 of critical damping site class b earthquake loads bc 1613.
Bloomberg mayor city of new york.
Because a green roof will add substantial weight to a building s structure you must hire a professional engineer or registered architect to perform a structural analysis to determine if the existing roof and its support system can hold the added load without a modification.
Weight of roofing materials.
Because a green roof will add substantial weight to a building s structure you must hire a professional engineer or registered architect to perform a structural analysis to determine if the existing roof and its support system can hold the added load without a modification.
With more than 1 6 billion square feet of rooftops in new york city green roofs and solar panels can help reduce our greenhouse gas emissions.
1 foot 304 8 mm 1 square foot 0 0929 m 2.
Installing a green roof or solar panel may add substantial weight to your roof.
Pounds per square foot lb ft 2 pounds per square 100 sq.
Tax incentives are available for making these improvements.
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.
Executive acknowledgements honorable michael r.
Buildings that are not more than two stories in height and having not more than 6 000 square feet of projected roof area and where there.
The weights of other actual products of the same type may vary.
Nonclassified roof coverings shall be permitted on buildings of group r 3 and group u occupancies where there is a minimum fire separation distance of 6 feet measured from the leading edge of the roof.
Number of occupants permitted with one stairway.
Reducing new york city s urban heat island effect ddc 2004 6 5.
Hire skilled and licensed professionals for installation.
Asphalt shingles 3 tab or strip 1 95 lbs.
If you live in the us our snow load calculator compares the total weight on your roof with the permissible load calculated according to the standards issued by the american society of civil engineers regarding the minimum design loads for buildings and other structures asce7 16.
Green roof property tax abatement.
These are the weights of typical actual products.
For occupancy groups r 2 and r 3 the maximum occupant load permitted on the rooftop or terrace shall not exceed 30 persons where.
