Nails For Roof Underlayment

Defer putting drip edge on angled gable ends until after the felt is laid so the metal.

Nails for roof underlayment.

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. These are 1 5 inches long plenty long to drive through that over sized over thick underlayment. Plastic round cap roofing nail 3 000 pack gcb1 the home depot. Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt.

When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. For all owens corning shingles roofing nails should penetrate into the wood deck by a minimum of inch or completely through the roof deck by a minimum of 1 8 inch. An underlayment nail from grainger has rings around the shank to give it greater holding power and a larger head to help keep it in place. Before walking on the underlayment surface roofers must fasten the synthetic underlayment securely to the roof deck with 1 inch plastic nails.

Pick up packs of 3d ring shank nails. There have been several occasions where shingles have blown off in heavy thunderstorms or hurricanes but because the felt underlayment was nailed securely the damage to the interior of the building was minimized. These are 1 25 inches long and can be used for underlayment that ranges up to 1 2 thick. What this means is the fasteners can t be sealed properly.

House floor joists are generally about 8 to 10 inches wide so nail length is not an issue. It acts a secondary waterproofing element plus it provides longevity for the roof system click here for a brief explanation. Synthetic roofing underlayments use cap nails or staples for the installation. Use underlayment nails for subfloor installations.

So even though the underlayment is water resistant you can t really call it waterproof. If you so happen to have thicker underlayment 3 4 inch or more then use 4d ring shank nails. Roofhelp and all other professional roofing organizations consider properly nailed underlayment to be an important part of the roof assembly. Use a 3 16 inch head ring shank nail to hold plywood underlayment for a subfloor in place.

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. Observe caution when walking or standing on the underlayment because varied weather conditions may reduce traction. General guidelines for nailing shingles.