How Do You Lay Coated Felt Roofing?
Coated felt roofing, commonly referred to as underlayment or tarpaper, is asphalt-impregnated paper that provides a second layer of protection under the main roofing. There are a number of different types and weights of felt roofing, and the shingle manufacturer usually provides instructions as to which type is needed. Apply the first row of roofing felt by starting at the bottom of the roof area, aligning it on one bottom corner and applying five or six staples. This will hold the felt roofing in place but still allow you to straighten it as needed. Roll the roofing felt to the other side of the roof along the front edge. Pull the felt out smooth and cut it so that it is even with a rake edge. The sidelap should be about 12 inches. Tack the edge down with plenty of staples. Glue down the headlap area of the first row near the gutters with roofing adhesive in order to protect against water backing up from the gutters. Then, move along the first row and tack staples evenly to affix the
