How Many Nails In Roofing Felt

The more common roof thickness is 3 4 inch decking.

How many nails in roofing felt.

Generally you should use four nails per shingle. Running a flat bottom shovel along the roof decking will help you find any stray nails that should be pulled. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. Inquire at the hardware store regarding the size of nail you ll need and how many pounds or kilograms you ll need of that size.

The nails should be long enough to go 3 4 inch 1 9 cm into the roof. For regular three tab shingles this would require 320 nails per square. Standard roof installation requires four nails per shingle. The average 3 tab shingle needs four nails per shingle.

Nail quantity per square shingle manufacturers recommend using four nails per shingle in the main part of the roof and five nails per shingle in the first row. However placement of the nails is the most important in any roofing job. Use a construction stapler or a hammer. Roll out about 10 feet of felt and fasten with staples or roofing nails with plastic washer heads.

320 nails will be needed to install a square of standard 3 tab shingles assuming four nails per shingle and 80 shingles per square. Any stray roof tacks pieces of old felt or general debris should be cleared off. The number of nails per pound or kg differs. The rationale behind the number is that in most cases four nails are the right number of nails to do a quality job.

High wind areas and other types of shingles may need more. Put fasteners at least every 8 inches. This is based on 80 shingles per square. Nails will also be required for any roofing project.

Ideally the roof should be done when there is a forecast for several days without a lot of rain. The roof decking should be completely clean and dry. For high wind areas or when shingles are being applied to a mansard six nails per shingle are required 480 nails per square.