How Much Roofing Felt Will I Need

Over time that damage could really add up.

How much roofing felt will i need.

Rolls of felt are 36 wide x 144 long for 15 and 72 long for 30. The 15 pound was for lighter weight projects while the 30 offered more heavy duty protection. 15 pounds per hundred square feet and 30 pounds per hundred square feet. Add a square for waste so you will need 157 bundles.

How many rolls of felt will you need. As a result you might need to calculate an estimate of how much it will cost to replace your old roof with a new one. Always double check with the roofing calculator to make sure that you have enough felt to cover the entire area of the roof. One square is equal to 100 square feet.

The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound roofing felt covers about 200 ft 2 or 2 squares. Anyway calculate the area plus overlap in square metres and that number will be the same as the length of 1m wide roofing felt that you ll need. Rolls of felt coverage for roofs is sold in rolls that are one square each. For many years roofers used asphalt saturated felt under roofing shingles and it was historically available in two standard weights.

While the average lifespan for a typical roof can be 15 20 years a long hard winter or a particularly intense storm can cause lasting damage to a roof. One roofing square equals to 100 square feet. Roofing felt is sold by the roll. Take the square foot of 5 128 divide by 100 100 sq ft is equal to one square so you have 51 28.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.