How Far To Nail Roofing Felt

For the lower portion of the roof especially the part that overhangs the eaves and is susceptible to ice dams it is a good idea to apply self stick waterproof shingle underlayment wsu also called ice guard.

How far to nail roofing felt.

All nails and staples should be placed on the lower half of the paper. These are 1 5 inches long plenty long to drive through that over sized over thick underlayment. Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt. The paper should then be nailed in or stapled every three to four inches across.

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. Use a 4 inch wide bed of roofing cement to attach everything that is closer than 12 inches. Keep nails at least 12 inches from the center of the valley. Where a roll ends and a new one is begun the two rolls should be overlapped by four inches.

Is felt really that important and what is roofing felt anyway. If you so happen to have thicker underlayment 3 4 inch or more then use 4d ring shank nails. Roofing felt is a layer of tar paper installed beneath the shingles to provide a backup waterproof membrane in case of leakage. Pick up packs of 3d ring shank nails.

In roofing one square equals 100 square feet. The nails themselves should be in uniform rolls spaced six to eight inches apart from each other on either side and top to bottom. 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. Small sheds usually require about 100 to 150 clout nails.

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. An underlayment of felt roofing is optional. Defer putting drip edge on angled gable ends until after the felt is laid so the metal. The nails should not go to the very outer edge of the roll.

If the circular nail heads penetrate the felt they can cause leakage. Be careful to drive nails flush. These are 1 25 inches long and can be used for underlayment that ranges up to 1 2 thick. You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square.

Use 1 inch nails for new roofing.