Coverage Of A Roll Of Roofing Felt

Roll roofing is different.

Coverage of a roll of roofing felt.

Roofing felt is sold in rolls and the product label will give information on the area contained. Divide the area of your roof by the area of the felt rolls you plan to use and allow an approximate 10 extra for waste. It has just one layer so it goes on fast and can be installed by a homeowner. Rolls of felt are 36 wide x 144 long for 15 and 72 long for 30.

To apply rolled roofing you ll need your roof measurements a broom chalk to mark lines a razor blade to cut the material roofing cement nails and a hammer to hold down the material. Rows are overlapped 2 inches not 6 inches. Visit your local hardware store and ask for enough rolled roofing to fit the area of your roof. A square is considered a 10 x10 area or a 100 square feet.

There are two basic types of felt. Net membrane roll for low slope roofing in white gaf tri ply app granule is a strong resilient gaf tri ply app granule is a strong resilient membrane that is suitable for new or reroofing projects as well as for use as flashing. A standard roll of 30 felt covers 216 square feet. A typical roof has three layers a felt layer and two layers of overlapping shingles.

When talking roofing materials. This membrane contains a core of nonwoven polyester mat that resists splits and tears. So you have 1 900 square feet. Tri ply app granular cap sheet 39 625 in.

For instance a typical 2700 square foot home might require three rolls of synthetic underlayment compared to 14 rolls of no 30 felt to cover the same area. Using a roll of felt coverage or several rolls provides the roof with additional waterproofing and protects the wood sheathing of a roof until the installation of shingles is finished. 15lb and 30lb felt. 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.

How many rolls of felt will you need. 15lb felt covers 4. Safe synthetic underlayment is also advantageous for worker safety the surface of many synthetic roofing underlayments including those offered by owens corning features a variety.