Use Double Felt Paper Roof
Start the roof felt at one bottom corner of the roof.
Use double felt paper roof. Lighter than felt synthetic underlayment is just as easy to work with. The first course starts with an extra 1 2 wide run. Starting a roof with tarpaper felt. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.
No 15 felt and no. Tack it in place at the corner with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof. Roofing underlayment roofing felt requirements. 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.
Is roofing felt required. Synthetic underlayment started gaining popularity in the last decade. It was easy to use durable and even had alignment lines to help with the shingle installation. Felt paper also referred to as tar paper was the standard underlayment material in roofing for decades.
Felt roofing underlayment is one of the oldest types of roofing underlayment. The best weight for roofing felt is the 30 pound product because it provides thicker and. Roofing felt is a layer of tar paper installed beneath the shingles to provide a backup waterproof membrane in case of leakage. It s created by saturating paper or fiberglass mat with asphalt.
This article series discusses roofing felt specifically addressing the roofing code or roofing manufacturer s requirements for use of an underlayment such as roofing felt tarpaper or other underlayment products beneath asphalt shingles and other. So anywhere along the gable end that you can see the felt you ll see two layers. Felt roofing underlayment is typically available in two types. Felt details for various roof slopes amp.
30 felt is typically thicker stronger and may be less prone to tearing or. Why use roofing felt paper. Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights. Item 656632 model 0903000.
Setting the roll and then nailing off. In fact there are a number of important ways roofing felt not only protects your roof but also your residence.