You may be wondering: What is the purpose of felt paper under roofing shingles? Listed below are some answers to that question. First, you need to know that the felt paper is an important component of the roofing system. The purpose of felt underlayment is to help prevent moisture penetration. In order to prevent this problem, it is essential to install it at the right time. Afterwards, you can follow the steps mentioned below to properly install it. roofing supply store
Felt paper helps prevent water damage from rain and snow. The felt protects shingles and roof decking from ice dams. When the ice begins to melt, the water has nowhere to go but into the wood below. Felt is an effective barrier that keeps melted ice from damaging drywall ceilings and insulation. Therefore, if you are worried about your roof’s durability and safety, felt paper should be used.
Another reason to use felt paper under roofing shingles is to prevent wood decking from showing through the shingles. Wood decking may be uneven, but the felt paper prevents that from happening by offering an even surface. Felt will also prevent resin leakage, which will contaminate your shingles. To prevent this from happening, you should always install felt paper underneath roofing shingles. It will help keep your roof looking clean and uniform.
Felt paper under roofing shingles is made of two or more layers of asphalt-saturated felt. Like tar paper, this material is waterproof. In the past, asphalt-saturated felt was the most popular type of felt under roofing shingles. But with the depletion of asphalt, other materials have gained popularity. Asphalt-saturated felt adds stiffness to the roof deck, which makes it stronger and more resistant to impact.
While the underlay provides secondary protection against water penetration, it also serves as a temporary storage area for leaky water until it evaporates. Besides providing temporary water storage, felt materials can also wrinkly or buckle, and telegraph through the final shingle layer. If you do not use underlayment under your roofing shingles, you’ll be voiding your manufacturer’s warranty.
Felt is the best underlayment for a roof, but it does have its disadvantages. It can absorb water, which makes the shingles lay flat harder. It can also be difficult to install, as it’s heavier than synthetic underlayment. It also has a slippery surface, which makes it difficult to work with. It can also prevent you from getting the manufacturer’s warranty.
While the shingles are the first line of defense against rain, a backup layer of weather protection is also vital for your roof. While shingles protect your roof deck, roofing felt can prevent damage by reducing moisture permeability in your roof. When you install new shingles, make sure that you include the right amount of felt paper underneath the shingles. In this way, you can extend the lifespan of your roof.