Roof Snow Load Map New Hampshire

Sheikh taheri published by the ui department of civil engineering 1986.

Roof snow load map new hampshire.

Your building s roof load rating should well exceed your town s expected loads. 12 for any location in the state of new hampshire you can click on the map below to find the design ground snow load for that location. In addition you can use our interactive massachusetts ground snow loads map for. Ft and more if local conditions warrant.

The standard practice for a few decades in new hampshire was to build our roofs to support 40 pounds per square foot psf live snow load. The only town or city in the state that had a national weather service station was concord and the 60 psf applied only there. Each state has a listing of building code and applicable guidelines for snow loads as well as details about where the snow load information may be found or purchased. Find your town s expected snow loads on this vermont snow load map or in the listing below.

That s about 4 feet of powder and as little as 2 feet of wet snow. Use the ground snow load for new hampshire developed by the corps of engineers cold. Use this information as a guide in constructing a building that will hold up for many years in our rugged climate. For many years builders and building code officials assumed that the ground snow load for the entire state of new hampshire was 60 pounds per square foot.

The state of new york has modified the snow load map. What snow load capacity does the building code require. Use our new hampshire ground snow loads map to easily determine the ground snow load new hampshire state building code. Massachusetts the state has amended the snow load requirements of the 2009 ibc figure 1608 2 and the 2009 irc figure r301 2 5 table r301 2 1 and table r301 2 5 with the 8th edition massachusetts building code which replaces the national snow load map with state specific tabulated values by jurisdiction.

Ground snow loads for new hampshire 5 that map is an older version of the national snow load map in asce 7 98. In blacked out areas of that map no values are given because extreme local variations in snow loads preclude mapping at this scale clearly many of those who responded did not know they were located in. 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. A publication can be purchased called ground and roof snow loads for idaho by r.

The purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states. Case studies have been performed for all cities towns and unincorprated townships in the state and are available in the publication ground snow loads for new hampshire us army corps of engineers erdc crrel tr 02 6 february 2002. Case studies have been performed for all cities towns and unincorprated townships in the state and are available in the. We recommend a safety margin of at least 10 lbs sq.

There is no generic answer for how much snow a roof can handle.