The snow load will be different depending on the construction of your roof.
How much does snow wigh on a roof.
Per square foot of roof space which is beyond.
All numbers are approximate.
Just consider the 20 or so homes that collapsed under the weight of a massachusetts snowfall.
How much does snow weigh.
Measuring snow load for flat roofs.
Two feet of old snow and two feet of new snow could weigh as much as 60 lbs.
Per square foot of roof space so anything more than 2 feet of snow could be too much for your roof to handle.
Psf pounds per square foot.
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.
28 40 light fluffy snow.
3 5 inches of old snow is equal to one inch of water or about 5 lbs.
Fluffy fresh snow can weigh as little as three pounds per square foot compared with 21 pounds for wet heavy snow according to fema.
Calculating snow load on roof.
Whether it s a flat roof or a pitched roof.
How much does snow weigh on a roof.
1 foot of snow on the roof 8 000 lbs 4 tons 7 psf 2 feet of snow on the roof 16 000 lbs 8 tons 14 psf 3 feet of snow on the roof 24 000 lbs 12 tons 21 psf.
Here are a few examples of the weight of snow on a roof.
Even though we typically measure snowfall in inches or feet you ll want to think of it in terms.
Before the snow starts to fall and build up on the roof of your house take the time to know how much snow your roof can support.
Snow usually melts off of steep sloped roofs slopes greater than 3 inches of slope in 12 inches of horizontal distance more quickly than flatter roofs.
57 pounds a square foot.
The weather channel meteorologist mark elliot takes on a weighty subject just how much does snow weigh.
Evaluate your risk of roof top snow ice accumulation.
These questions aren t quite so easy to answer because there are several variables.