15 Lb Felt Roof Overlap

Purchase enough felt to cover your roof s area.

15 lb felt roof overlap. A conventional roll of felt is enough for 432 square feet. Plywood or osb roof deck so 15 20 or 30 will work for any shingle roof the type i recommend depends on roof slope. Buy the roof felt. The roofing felt should be applied in layers that overlap.

Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest. Roofing felt is required to overlap 2 inches over the lower felt course. Many codes municipalities and manufacturers require at least a 15 lb. The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below.

As you work the paper can be tacked down in the center so it won t blow away. This underlayment features excellent asphalt saturation for effective waterproofing. 15 felt type construction helps provide an extra layer of protection between your shingles and your roof deck not included heavy duty design lays flat to help minimize wrinkling asphalt saturation to help improve waterproofing ability to help prevent wind driven rain and water from other sources from infiltrating under your shingles and. Product may vary by store.

Felt has a 36 in. Of coverage for residential and commercial roofing projects. Felt underlayment for all roof installations or replacements. 15 asphalt felt roofing underlayment provides an extra layer of protection between your shingles and your roof deck.

At s a roofing we disagree with this statement. One roll of conventional 15 felt covers 432 square feet 40 1 m 2. Fifteen pound felt has a perm rating of about 5 although this number can rise in high humidity conditions. For residential and commercial use.

You might hear some say if the felt paper is nailed then it basically is ruined or is not applicable as a water proofing agent. Width and a 144 ft. However you must allow for overlaps on joints. This gardner asphalt 15 432 sq.

In most cases this will leave 400 square feet 37 m 2 of net coverage per 1 roll. Thirty pound felt is more resistant to damage during installation of the roof covering material and will protect the roof longer if it should somehow become exposed to weather. It s available in two thicknesses. Since you will have overlap between rows this works out to a total coverage area of 400 square feet the dimensions of a 20 x 20 roof.

In my opinion felt paper is a vapor barrier plus keeps the oils in the shingles from leaching out and into the wood substrate i e.