One Layer Roofing Felt

Of course how many rolls you need will depend on the size of the roof so ensure you measure correctly.

One layer roofing felt.

Align this layer with the bottom of the roof. Installing the roofing felt does take care but can go very quickly. 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. This felt will help prevent damage to your roof from wind driven rain and water from other sources.

Felt roof deck protection. It gets in if a joint opens or the felt is punctured. 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. For decades roofers have fitted a layer of felt over a roof s sheathing or roof deck before installing shingles.

Adding a second layer could compromise the structure of your roof. Don t let that cowboy job put you off felt. Asphalt saturated material for excellent waterproofing heavy duty felt design lays flat and minimizes wrinkling. In a single coverage felt installation the lower edge of each course overlaps the previous course by a minimum of 2.

Snap a chalk line the. Overlay a second layer of felt 2 to 3 inches and fasten it through the overlay so it secures the top of the felt underneath. You can t fit a dpm on the deck first and there is no advantage in it in any case. In fact there are a number of important ways roofing felt not only protects your roof but also your residence.

These applications are ideal for flat roofs or protective surfaces under roof level decks. A second layer of shingles only complicates the job when a roofer is trying to fix a leak. Roofing felt commonly called tar paper is an important component of any roofing system. Click to enlarge any image.

Bitumen felt is a layer system. Done right it will last. Some roofing felts are actually glued down. Water does not penetrate felt over time.

Why use roofing felt paper. Roofing felt offers an additional layer of protection against the elements. One layer is bonded to the deck and then another one or two laid on that. Often there is a problem with the first layer of shingles that was not apparent.

That s because on roofs like the one in the photo with slope of 4 12 or greater only a single layer of felt is required under asphalt shingles. Add an extra layer of protection between your shingles and roof deck with this 30 216 sq. Many roof decks were designed to handle only one layer of shingles.