Flat Roof Snow Load Calculator

A completely flat roof is a poor design as water and snow will collect on it eventually leading to your roof collapsing in from the weight of it all.

Flat roof snow load calculator.

The final step in calculating the snow load is to multiply the volume of snow on the roof by its density. The smallest pitch of a roof is 0 5 12. A common choice for flat roofing material is epdm rubber as it is highly durable waterproof and can be made from recycled materials. The balanced snow load is applied everywhere where the roof structure is located.

Use this same calculation to find the total weight of snow on a flat roof. 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. 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. Online snow load calculator for buildings with flat or low slope roofs for balanced snow drift and rain on snow surcharge loadings calculator asce 7 05 for structural engineers construction professionals and building planners.

It also informs you whether you should immediately remove some of the snow or you can wait a little bit longer. Determine the transient load of the roof. You might also be interested in our snow to water volume calculator. Basing on the roof parameters you specified in the first section our snow load calculator displays the maximum allowable snow cover thickness and snow weight.

Span calculator for wood joists and rafters also available for the android os. 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. 500 times 1 25 yields 625 kg 1 378 lb of snow. For ground snow loads greater than 20 pounds per square foot the roof load is equal to 70 of the product of the exposure thermal and importance factors the ground snow load and 20 pounds.

If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow. Roof snow load calculation. This is highly regional as weights of snow for example range from 10 to 300 pounds per square foot based on moisture and volume of the snow. Make sure to not wait for too long though.

For example using a 25 by 20 metre garden. After you obtain the roof slope factor from those sections in asce 7 10 the balanced design snow load for the sloped roof can easily be calculated using equation 7 4 1. Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. If your structure has a sloped or flat roof you still need to calculate the flat roof snow load.