Certain jurisdictions shaded grey have specific snow load requirements per table 1608 1 2 b that differ from the values given by.
Utah county roof snow load requirements.
The state has amended the snow load requirements from the ibc and a snow load map may be found at.
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.
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.
Seismic load d.
Seismic zone d1.
When new roofing systems will increase the roof load on a building then the roof deck.
The lower limit is 21 psf to meet asce 7 minimum guidelines.
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.
The north zone middle zone and the south zone are identified on the roof load zone map above.
Sheikh taheri published by the ui department of civil engineering 1986.
Ws as calculated below shall be combined with seismic loads.
Pg ground snow load at a given elevation psf.
Use our utah ground snow loads 2019 map to easily determine the historical ground snow load utah 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.
The purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states.
The upper limit however is not as easily determined.
Purpose of this web site.
Wind 90 mph w 115 mph gust.
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.
Use the gis online map to help determine if your property falls in a floodplain.
A publication can be purchased called ground and roof snow loads for idaho by r.
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.
Foot in valley areas.
Flat roof snow loads of 30 pounds per square foot 1 44 knm2 or less need not be combined with seismic loads.
You can click on the map below to find the design ground snow load for that location.
Environmental standards for cache valley roof snow load 35 lbs or more sq.
Roof snow load per design professional.
If you are within a 100 year floodplain and are needing to do a flood elevation certificate.
Title 15a chapter 3 section 107 for any location in the state of utah.
For canyons and all mountain areas the load is 100 lbs or more sw.
The state has amended the snow load requirements from the ibc.
