Felt Installed Under Rolled Roofing

Roll roofing is different.

Felt installed under rolled roofing. A typical roof has three layers a felt layer and two layers of overlapping shingles. Installing the roofing felt does take care but can go very quickly. Some roofing felts are actually glued down. It has a life expectancy of anywhere from six to 10 years but it s fairly inexpensive.

One msr roofing roll is usually about 36 feet long by 36 inches wide. But unlike an asphalt shingle roof nailed over felt directly to a roof deck a wood shingle or shake roof that has been installed using best practices includes a disposal path for water absorbed in the roof surface. Roll roofing is a lightweight roofing material that s sold in a large roll. You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square.

Roll roofing is a good choice for covering an existing roof. Rolled roofing or roll roofing also known as msr comes in rolls of 100 square feet. The roofing should overhang the eaves by inch except where you install drip edge flashing on top of the roofing along the rake edge. So in terms of quantity a roofing roll is about the size of one composite shingle square.

Sometimes called roofing felt underlayment roofing tar paper or roll roofing this is a layer of protection installed between the roof deck and the roofing shingles. An air space between the wood roofing and the roof deck or the installation of wood roofing over spaced nailers or skip. 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. These applications are ideal for flat roofs or protective surfaces under roof level decks.

Applying roofing felt first will better protect the sheathing against condensation as well as against leaking. Rolled roofing is easy to obtain and can be found at all home improvement stores. It can be installed simply and requires only nails and roofing cement. Visit your local hardware store and ask for enough rolled roofing to fit the area of your roof.

Peel seal instant waterproof repairs 3 ft w x 33 5 ft l 100 5 sq ft aluminum roll roofing. Roll roofing is often installed over bare wood sheathing or sheathing that has been painted with a primer. An underlayment of felt roofing is optional. For a slightly sloped roof use the concealed nail method shown.

These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof. For many years roofers used asphalt saturated felt under roofing shingles.