How To Install Roofing Felt Underlayment

As you work the paper can be tacked down in the center so it won t blow away.

How to install roofing felt underlayment.

Snap a chalkline 32 inches above the top edge of the wsu or use the lines on the felt as guides. Cut the membrane into 10 to 15 foot lengths and re roll loosely. Peel back 1 to 2 feet of release liner align membrane. Peel the release liner from the membrane.

Start the roof felt at one bottom corner of the roof. Press the membrane of the self adhering roofing underlayment in place with heavy hand pressure to ensure the desired adhesion to the roof deck. Install drip edge at the roof eave edges. Overhang the roof rake edge 1 5 and cover the underlayment with a metal rake edge trim.

Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it. The roofing felt should be applied in layers that overlap. Roll out the felt eliminating creases or bubbles and drive at least three staples every foot.