Weight Of A Cubic Foot Of Snow On Roof

If it snows 12 of light and fluffy snow it will weigh about 5 2 pounds.

Weight of a cubic foot of snow on roof.

Using the chart above find the density. S 1 25 p where s is the number of inches of snow on your roof and p is the pounds per square foot of that snow. Min weight 3670 8 lbs. That amounts to 720 cubic feet of snow.

The decision to shovel off a roof is a case by case decision he says. Saturated snow weighs about 20 lbs cubic foot. A cubic foot of dry snow weighs about 6 to 8 pounds while 1 cubic foot of packed snow can weight 20 pounds. Light and fluffy snow weighs the least.

It could weigh over 20 pounds if it s wet and compacted. You then divide it by the amount of snow in inches. Thus the total weight of snow is 3 670 8 4 195 pounds. I ll estimate 7 pounds per square foot in my case.

Max weight 4195 lbs. 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. None of our scenarios takes into account the presence and or weight of ice which is almost always accompanies snow. Measures about 2000 square feet.

Ice buildup adds weight rapidly he adds. More average snow may weigh 15 pounds per cubic foot and drifted compacted snow may weigh 20 pounds or more he notes. Two feet of snow on a roof with a footprint of say 28 40 feet could weigh 45 000 pounds. Our snow load calculator helps you to make the decision when to remove the snow from your roof by comparing the weight of snow with the load carrying capacity of the roof.

Light fluffy snow may only weigh about seven pounds per cubic foot. To calculate the weight of snow you take 7 48 gallons of per cubic foot of water which is about 62 4 pounds. Light fluffy snow weighs about 7 pounds per cubic foot while heavy wet snow can weigh up to 20 pounds. The average roof in the u s.

I estimated that about 2 5 feet of snow was on the roof. Snow density is a function of temperature wind exposure and time. A cubic foot of snow can weigh about 7 pounds if it s dry and fluffy. Snow density increases over time as the snow experiences more changes in temperature and wind.

1 cubic foot of ice weighs 57 2 lbs which is more than five times the weight of even the wettest heaviest snow. Min weight 21 85 lbs 168 cu. Please remember that the numbers given by this calculator are just an approximation and are by no means 100 accurate. Max weight 24 97 lbs 168 cu.

That s more than 22 tons.