Utah County Roof Snow Load Requirements

Use the gis online map to help determine if your property falls in a floodplain.

Utah county roof snow load requirements.

Title 15a chapter 3 section 107 for any location in the state of utah. The upper limit however is not as easily determined. Certain jurisdictions shaded grey have specific snow load requirements per table 1608 1 2 b that differ from the values given by. Purpose of this web site.

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. 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. Pg ground snow load at a given elevation psf. Wind 90 mph w 115 mph gust.

The lower limit is 21 psf to meet asce 7 minimum guidelines. The north zone middle zone and the south zone are identified on the roof load zone map above. The state has amended the snow load requirements from the ibc and a snow load map may be found at. You can click on the map below to find the design ground snow load for that location.

For canyons and all mountain areas the load is 100 lbs or more sw. Seismic load d. When new roofing systems will increase the roof load on a building then the roof deck. If you are within a 100 year floodplain and are needing to do a flood elevation certificate.

The state has amended the snow load requirements from the ibc. Sheikh taheri published by the ui department of civil engineering 1986. Frost depth 30 is your property in a flood zone. Since values are extrapolated rather than interpolated the estimated values for snow loads at elevations significantly higher than nearby stations sometimes lead to unreasonably high snow load estimates.

Roof snow load per design professional. This downward imposed load on the home is also known as the snow load. 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. 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.

A publication can be purchased called ground and roof snow loads for idaho by r. 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. Flat roof snow loads of 30 pounds per square foot 1 44 knm2 or less need not be combined with seismic loads. 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 purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states. Ws as calculated below shall be combined with seismic loads. Use our utah ground snow loads 2019 map to easily determine the historical ground snow load utah code.