Nails For Roof Underlayment

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.

Nails for roof underlayment.

What this means is the fasteners can t be sealed properly. Synthetic roofing underlayments use cap nails or staples for the installation. General guidelines for nailing shingles. Before walking on the underlayment surface roofers must fasten the synthetic underlayment securely to the roof deck with 1 inch plastic nails.

It acts a secondary waterproofing element plus it provides longevity for the roof system click here for a brief explanation. Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt. Grip rite 12 x 1 in. Plastic round cap roofing nail 3 000 pack gcb1 the home depot.

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. 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. 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.

Use underlayment nails for subfloor installations. Observe caution when walking or standing on the underlayment because varied weather conditions may reduce traction. Defer putting drip edge on angled gable ends until after the felt is laid so the metal. If you so happen to have thicker underlayment 3 4 inch or more then use 4d ring shank nails.

So even though the underlayment is water resistant you can t really call it waterproof. 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. The nail tip must not exceed the width of the floor joist it is being driven into. Pick up packs of 3d ring shank nails.

Roofhelp and all other professional roofing organizations consider properly nailed underlayment to be an important part of the roof assembly. When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. Use a 3 16 inch head ring shank nail to hold plywood underlayment for a subfloor in place.