Roof Snow Load Map Ny

In some cases this lo ad may be reduced for a sloped roof to account for sliding snow and improved drainage of meltwater.

Roof snow load map ny.

The ground snow loads to be used in determining the design snow loads for roofs shall be determined in accordance with asce. Where flat roof snow loads exceed 30 psf 1 44 kn m 2 20 percent shall be combined with seismic loads. New york the state has amended the snow load requirements of the ibc chapter 16 with the 2010 building code of new york state which states that the ground snow loads to be used in determining the design snow loads for roofs shall be determined in accordance with asce 7 or figure 1608 2. Snow exposure factor c e.

As an example the flat roof snow load for a roof located in a 55 psf snow z one is typically 70 of 55 or 38 5 psf. You can click on the map below to find the design ground snow load for that location. Crane hook loads need not be combined with roof live load or with more than three fourths of the snow load or one half of the wind load. Chapter 16 section 1608 for any location in the state of new york.

Please contact us with feedback. This downward imposed load on the home is also known as the snow load. The north zone middle zone and the south zone are identified on the roof load zone map above. By multiplying the gsl by 0 7 or 70 of the ground snow load.

The ground snow load p g shall be indicated. The minimum design roof snow load. Why snow load information. Flat roof snow load p f.

In areas where the ground snow load p g exceeds 10 pounds per square foot psf 0 479 kn m 2 the following additional information shall also be provided regardless of whether snow loads govern the design of the roof. In areas of the state outside of certified local government jurisdictions the design snow load shall be based on the ground snow loads developed in snow loads for structural design in montana authored by f f. 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. Snow load importance.

Schilke civil agricultural engineering montana state university august 1989. However for roofs having a non slippery. Flat roof snow loads of 30 psf 1 44 kn m 2 or less need not be combined with seismic loads. This is a beta release of the new atc hazards by location website.