POOL ENCLOSURE SNOW LOADS
Manufactured extruded aluminum frame, polycarbonate or glass roof swimming pool enclosures engineered to meet high ground snow / roof live loads and wind speeds. The photo below was taken after the blizzard of 2013 in northeastern Canada.
Weight of Snow:
Calculation: S x 1.25 = P where:
S = Inches of snow on the roof (depth)
1.25 = Weight of 1 sq ft of snow for each 1-inch of depth
P = Pounds per square foot (lbs/sq ft)
20-inch roof snow depth x 1.25 lbs/sq ft = 25 lbs per sq ft of roof snow load
Any ice build-up on the roof would need to be added to this formula. Add 5.2 lbs for each 1-inch of ice.
A one-inch layer of water or ice weighs approximately five lbs. per square foot.