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.
Nails for roof underlayment.
So even though the underlayment is water resistant you can t really call it waterproof.
Observe caution when walking or standing on the underlayment because varied weather conditions may reduce traction.
What this means is the fasteners can t be sealed properly.
If you so happen to have thicker underlayment 3 4 inch or more then use 4d ring shank nails.
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.
Synthetic roofing underlayments use cap nails or staples for the installation.
General guidelines for nailing shingles.
These are 1 25 inches long and can be used for underlayment that ranges up to 1 2 thick.
It acts a secondary waterproofing element plus it provides longevity for the roof system click here for a brief explanation.
Use a 3 16 inch head ring shank nail to hold plywood underlayment for a subfloor in place.
Acquire an essential and modern addition to complete any fastening job in your project with the purchase of this grip rite plastic round cap roofing nail.
Roofhelp and all other professional roofing organizations consider properly nailed underlayment to be an important part of the roof assembly.
Plastic round cap roofing nail 3 000 pack gcb1 the home depot.
Use underlayment nails for subfloor installations.
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.
When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure.
House floor joists are generally about 8 to 10 inches wide so nail length is not an issue.
Before walking on the underlayment surface roofers must fasten the synthetic underlayment securely to the roof deck with 1 inch plastic nails.
These are 1 5 inches long plenty long to drive through that over sized over thick underlayment.
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.
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.
Grip rite 12 x 1 in.
Pick up packs of 3d ring shank nails.