Roofing Underlayment Nails

There has always been a lot of controversy in the construction industry on how to properly nail the underlayment or whether it s even necessary.

Roofing underlayment nails.

For pricing and availability. Nail down squarely 90 degrees into the deck to secure caps flush to the underlayment. Fasten the field area in the middle of the roll a minimum of 24 o c. Experienced roofers will tell you that once a house has been roofed it doesn t really matter if staples or cap nails were used to secure the underlayment roofing material.

Only use 1 diameter plastic cap roofing nails. Owens corning weatherlock 36 in x 66 7 ft 200 sq ft polypropylene roof underlayment. How to install felt underlayment for a new roof. Plastic round cap roofing nails 2 500 pack 12 x 1 in.

In normal wind zones. In normal wind zones the nails should be driven at 6 0 o c. Plastic round cap roofing nail 3 000 pack 14 x 1 3 4 in. They re certainly faster and easier to install.

However depending on local roofing and fire codes it may be appropriate to secure synthetic underlayments with staples. Synthetic roofing underlayments use cap nails or staples for the installation. Installing a roof is much more than just nailing shingles onto some boards. Before applying roofing you ll need to cover the sheathing with roofing felt also often called tar paper most local codes call for using 30 pound felt.

A recent post on underlayments brought up another subject of underlayment attachment. Tri flex 15 roofing underlayment is mechanically attached and may be used in conjunction with all gcp fully. 5 penny stainless steel shake shingle nail 5 lbs. United roofing gator skin synthetic roof underlayment 42 in x 285 8 ft 1 000 sq ft synthetic 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. Tri flex 15 synthetic roofing underlayment is designed to tri flex 15 synthetic roofing underlayment is designed to overcome the shortcomings of 15 felt while delivering advanced benefits that save the contractor time and labor. I am deciding on a contractor for a new roof and as i recall most said they simply staple the underlayment. So even though the underlayment is water resistant you can t really call it waterproof.

It starts with installing solid decking usually plywood or oriented. On center on both head and end laps. Some roofers use regular roofing nails some use staples some attach it with hardly any nails at all using only a single nail every few feet. I looked at gaf website and their instructions say in bold do not use nails or staples without caps.

I checked certainteed and all i saw was that they. What this means is the fasteners can t be sealed properly.