Roofing Felt Paper Coverage

Measure the length and width of each portion of the roof multiply length by width for each plane and add the planes together for the total square footage.

Roofing felt paper coverage.

Your math 10 x20 200 sqft. Felt roofing underlayment is typically available in two types. Grace ice water shield 36 in x 75 ft 200 sq ft rubber roof underlayment. It s created by saturating paper or fiberglass mat with asphalt.

The specs on the website say that this will cover 432 sqft. Roofing experts have discovered that adding a layer of protection between your structural roof decking the layer of wood that covers your rafters and your roof shingles helps create a better looking and longer lasting roof. Roofing paper or felt normally comes in about 150ft rolls and are 3ft wide. Assuming your roofing contractor is using standard 36 wide 15 roofing felt double coverage means that each layer of felt put down across the roof laps 19 over the upper half of the previous course.

Figure about 450 square feet of felt. You will need just under 1 2 of a roll. Roofing felt also known as tar paper is a roll of felt coverage is often used when constructing a roof. The first course starts with an extra 1 2 wide run.

Starting a roof with tarpaper felt. Estimating felt underlayment tar paper 1 find the square footage of the roof. Setting the roll and then nailing off. This video walks through the very basic steps for installing tarpaper felt.

In order to know the appropriate amount of roofing felt to use the roof pitch will need to be calculated first. Felt roof deck protection. This felt will help prevent damage to your roof from wind driven rain and water from other sources. So anywhere along the gable end that you can see the felt you ll see two layers.

Good luck on your project. No 15 felt and no. Item 169827 model 5003002. Why use roofing felt paper.

Remember when estimating required amounts that you need to overlap the felt. It provides extra waterproofing to protect the wood until shingles are installed.