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