Roof Snow Load To Ground Snow Load

Pf is flat roof snow load if as a consumer your concern is snowfall and you want to upgrade the ability of your building to carry it this is the value to increase.

Roof snow load to ground snow load.

If your roof is pitched enter the length and width of the flat area covered by the roof. The snow load that is applied to our structure is not the ground snow load but in most cases the flat roof snow load. Horizontal distance from eave to ridge. You can enter this value either as a ratio x 12 or as an angle whichever suits you better.

Length of roof downwind of the snow drift. Background and applications section 4 snow load on the ground the snow load on the roof is derived from the snow load on the ground multiplying by appropriate conversion factors shape thermal and exposure coefficients. The flat roof snow load is calculated using formula 7 3 1. If the snow weighs 10 pounds per cubic foot and there are 1 5 feet on the roof each square foot of the roof is getting 15 pounds of pressure.

Other considerations for sloped roofs can be found throughout chapter 7 of asce 7 10. If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow. When discussing snow load with anyone it is crucial to have a clear understanding as to if the load is a ground or flat roof snow load. This web based application is made freely available courtesy of the advertisements displayed on this page.

Length of high roof lu. 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. To figure out the load on your roof take the depth of snow in feet and multiply it by the weight of a cubic foot of snow. To determine the snow load for your specific community and zone refer to the chart for sterling the ground snow load for both residential commercial properties is 55 lbs per horizontal square foot to provide a response to how much requires a little bit of science math and knowledge of the roof structure and type.

The truss could be designed based on the assumption that the 25 psf roof snow load is a factored ground snow load in which case a ground snow load is back calculated using asce 7 based on the specified roof snow load pg 25 psf therein lies the problem with specifying only a roof snow load. The snow load calculations provided by this online tool are for educational and illustrative purposes only. Medeek design assumes no liability or loss for any designs presented and does not guarantee fitness for use. Length of low roof ll.

Length of roof upwind of the snow drift. Ground snow load pg. From eave to ridge w. In our case let s assume that our structure has a flat roof roof slope 5.