Snow Load On Metal Roof

Check out our roof pitch snow load calculator to measure your roof s snow load capacity today.

Snow load on metal roof.

You can also find the load per square meter or square foot of roofing by opening the advanced mode. Once you know these values our snow load calculator automatically finds the total weight of snow on your roof. Snow loads design snow loads shall be determined in accordance with chapter 7 of asce 7 05 but the design roof load shall not be less than that determined by section 1607. The amount of additional snow load or surcharge depends on the difference in height of the two adjacent roofs and the lengths of roof perpendicular to the drop in height.

If you want to calculate these values by hand use the following formulas. Snow loads acting on a sloping surface shall be assumed to act on the horizontal projection of that surface. Snow load is an environmental load not a live load section 1602. Metal building roof snow loads.

Therefore the reduction of live loads for tributary area in section 1607 11 2 is not permitted. If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow. P s c s p f. Wondering how to calculate the number of snow guards needed for your metal 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. As loads vary dramatically from one area and one elevation to another it is the responsibility of the buyer to current building codes with their local building officials before ordering a rhino steel building. The sloped roof snow load p s shall be obtained by multiplying the flat roof snow load p f by the roof slope factor c s. Or the 25 psf snow load could be entered as a roof snow load with the unbalanced snow loading option turned off.

The thermal factor c t from table e 3 determines if a roof is cold or warm slippery surface values shall be used only where the roof s surface is unobstructed and sufficient space is available below. If unbalanced snow loading isn t required or specified the truss designer may enter the 25 psf snow load as a top chord live load tcll set the load duration factor to 1 15 for snow and turn snow loading off completely. 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.