Roof Snow Load Utah

Flat roof snow loads of 30 pounds per square foot 1 44 knm2 or less need not be combined with seismic loads.

Roof snow load utah.

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. This load need not be assumed to act concurrently with the uniform load. Ws as calculated below shall be combined with seismic loads. 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 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. For example the roof snow load in salt lake county is 30 pounds per square foot. The north zone middle zone and the south zone are identified on the roof load zone map above. 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.

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 latitude and longitude of the site may be entered on the top line. When new roofing systems will increase the roof load on a building then the roof deck. Why snow load information.

The utah address may be entered. 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. Use our roof snow load calculator to determine your design roof snow loads. Your roofing contractor will build your home according to these guidelines.

This downward imposed load on the home is also known as the snow load. 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. 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. 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.

The minimum concentrated load on stairtreads shall be applied on an area of 2 inches by 2 inches. The concentrated wheel load shall be applied on an area of 4 5 inches by 4 5 inches.