The purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states.
Ground snow load to roof snow load calculator.
Asce 7 drift height calculation.
Horizontal distance from eave to ridge.
Medeek design assumes no liability or loss for any designs presented and does not guarantee fitness for use.
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.
Length of low roof ll.
This web based application is made freely available courtesy of the advertisements displayed on this page.
You might also be interested in our snow to water volume calculator.
Ground snow load pg snow load design reductions under 2 000 feet no snow load n a between 2 000 and 3 500 feet 20 lbs sq.
Other considerations for sloped roofs can be found throughout chapter 7 of asce 7 10.
Length of high roof lu.
If you have a density range then multiply the volume by each part of the range separately to find the minimum and maximum snow load.
Calculate snow load the final step in calculating the snow load is to multiply the volume of snow on the roof by its density.
Ft a minimum of 20 percent of the unreduced design snow load shall be included in the seismic dead load.
Rain load s r.
In our case let s assume that our structure has a flat roof roof slope 5.
The snow load that is applied to our structure is not the ground snow load but in most cases the flat roof snow load.
Ft snow loads may be excluded in the calculation of the seismic forces.
Purpose of this web site.
Length of roof upwind of the snow drift.
The flat roof snow load is calculated using formula 7 3 1.
Roof snow load nbc 2010 version 0 1 0 september 13 2020.
From eave to ridge w.
Snow weight length width cos pitch snow load the weight of snowis measured in kgor lbs.
Specified snow load.
Between 3 500 and 5 000 feet 40 lbs sq.
If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow.
The snow load calculations provided by this online tool are for educational and illustrative purposes only.
Length of roof downwind of the snow drift.
Ground snow load s s.
Figure 7 1 pages 84 85 and table 7 1 page 92.
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.
Snow load thickness density the result snow load or the pressure exerted by the snow has the units of kn m or lbs ft.
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.
Ground snow load pg.
Roof snow load and the applicable snow.
Importance factor i s.
