Roof Felt Nail Spacing

Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

Roof felt nail spacing. Roll out the felt toward the other end of the roof. Each row of nails that are 24 on center should be approximately 12 from the outside edge of the roll. Be sure that there are no wrinkles. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled.

Pull straighten and align the felt along the eaves. Any stray roof tacks pieces of old felt or general debris should be cleared off. From behind the roll reach over and nail down the top of the strip with roofing nails spaced 6 to 8 inches apart. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.

How to install felt underlayment for a new roof. The roof decking should be completely clean and dry. It starts with installing solid decking usually plywood or oriented. A structure s roof truss spacing can vary from every 12 to 24 inches.

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. Ideally the roof should be done when there is a forecast for several days without a lot of rain. Pick up the roll with both hands.