Construction codes and the new york city zoning resolution.
Roof weight analysis nyc.
1 foot 304 8 mm 1 square foot 0 0929 m 2.
Executive acknowledgements honorable michael r.
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.
Asphalt shingles 3 tab or strip 1 95 lbs.
Bloomberg mayor city of new york.
The weights of other actual products of the same type may vary.
Green roof property tax abatement.
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.
Tax incentives are available for making these improvements.
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.
For occupancy groups r 2 and r 3 the maximum occupant load permitted on the rooftop or terrace shall not exceed 30 persons where.
In addition the following conditions shall apply.
Ft kilograms per square meter kg m 2 source.
Reducing new york city s urban heat island effect ddc 2004 6 5.
Hire skilled and licensed professionals for installation.
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.
Cost analysis 3 5 4 cool roof considerations cool roof standards 4 1 going from hot to cool 4 2.
Number of occupants permitted with one stairway.
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.
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.
Pounds per square foot lb ft 2 pounds per square 100 sq.
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.
