How Far To Nail Roofing Felt

Be careful to drive nails flush.

How far to nail roofing felt. If the circular nail heads penetrate the felt they can cause leakage. Keep nails at least 12 inches from the center of the valley. The paper should then be nailed in or stapled every three to four inches across. Some roofers prefer to attach felt underlayment with 1 inch roofing nails or special nails with plastic washers but most codes allow staples which are easier to drive.

In roofing one square equals 100 square feet. The overhang to the next strip should be 3 8 inch. Defer putting drip edge on angled gable ends until after the felt is laid so the metal. You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square.

Also called roof felt or builder s felt overlapped tar paper creates a water barrier that is your home s last line of defense against the elements if your shingles are damaged by wind hail or age. The nails themselves should be in uniform rolls spaced six to eight inches apart from each other on either side and top to bottom. If you so happen to have thicker underlayment 3 4 inch or more then use 4d ring shank nails. Pick up packs of 3d ring shank nails.

These are 1 5 inches long plenty long to drive through that over sized over thick underlayment. They are long enough to penetrate the sheathing. Where a roll ends and a new one is begun the two rolls should be overlapped by four inches. These are 1 25 inches long and can be used for underlayment that ranges up to 1 2 thick.

The nails should not go to the very outer edge of the roll. Is felt really that important and what is roofing felt anyway. Small sheds usually require about 100 to 150 clout nails. Space each nail apart by about 30 to 36 inches 76 to 91 cm along the side of the felt closest to the roof s peak and 12 inch 30 5 cm along the side closest to the ground.

Use 1 inch nails for new roofing. An underlayment of felt roofing is optional. Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt. Roofing felt is a layer of tar paper installed beneath the shingles to provide a backup waterproof membrane in case of leakage.

Use a 4 inch wide bed of roofing cement to attach everything that is closer than 12 inches.