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SUGGESTED NAIL LENGTHS FOR ASPHALT SHINGLES
|
Size of Roof Deck |
| 3/8" |
1/2" |
5/8" |
3/4" |
Plank |
| Three
Tabs Over Felt - Tear Off |
1" |
1" |
1" |
1" |
1" |
| Dimensional
Shingles Over Felt - Tear Off |
1" |
1-1/4" |
1-1/4" |
1-1/4" |
1-1/4" |
| 3-Tabs
Over 3-Tabs - Overlay |
1-1/4"* |
1-1/4" |
1-1/4" |
1-1/2" |
1-1/2" |
| Dimensionals
Over 3-Tabs - Overlay |
1-1/4"* |
1-1/2" |
1-1/2" |
1-1/2" |
1-1/2" |
*Overlays aren't recommended over
3/8" roof decks
DISCLAIMER - The above lengths are recommendations only. Consult a
local contractor or material representative for specific nail lengths. The National
Roofing Contractors Association and the Asphalt Roofing Manufacturers Association both
suggest that the roofing nails should be long enough to penetrate the roof deck 3/4",
or go completely through plywood or OSB type decking.
If your roof deck is not wood, please contact RoofHelp for alternatives.
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