Roof Snow Load Utah

The utah ground snow load map uses three options for location input.

Roof snow load utah.

They will design the roof frame to be able to easily withstand at least 30 pounds per square foot they have to or else the roof won t be up to code and the roofing permit won t pass inspection. The minimum concentrated load on stairtreads shall be applied on an area of 2 inches by 2 inches. Local building code determines roof snow load and it will be based on the average amount of precipitation in the region. Roof diaphragm should be evaluated by a structural engineer to determine whether the diaphragm needs to be upgraded to meet current seismic requirements as required by current state building code.

Why snow load information. The latitude and longitude of the site may be entered on the top line. Flat roof snow loads of 30 pounds per square foot 1 44 knm2 or less need not be combined with seismic loads. For example the roof snow load in salt lake county is 30 pounds per square foot.

According to title 15a chapter 3 section 107 of the utah code a roof s snow load may be determined with the following equation rounded to the nearest 5 psi. The north zone middle zone and the south zone are identified on the roof load zone map above. If you have any questions or concerns about specific ground snow loads within the state of utah please call us at 1 425 652 4188. Ws as calculated below shall be combined with seismic loads.

Pg po 2 s 2 a ao 2 0 5 for a greater than ao and pg po for a less than or equal to ao. The map may be right clicked at the location of interest which will enter in the latitude and longitude of that location automatically into those fields. Where flat roof snow loads exceed 30 pounds per square foot 1 44 knm2 the snow loads may be reduced in accordance with the following in load combinations including both snow and seismic loads. A great deal of confusion currently exists among engineers architects recreation specialists and maintenance personnel concerning the proper snow loading to use for the design and maintenance of trail bridges building roofs and other structures in mountainous high snow load areas.

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. The north zone design live load equates to 40 pounds per square foot the middle zone equates to 30 pounds per square foot and the south zone equates to 20 pounds per square foot. This load need not be assumed to act concurrently with the uniform load. The concentrated wheel load shall be applied on an area of 4 5 inches by 4 5 inches.

Your roofing contractor will build your home according to these guidelines. The utah address may be entered.