The International Building Code requires that roofing nails have a minimum 12-gauge shank and a 3/8-inch diameter head.
Do you use 4 or 5 nails per shingle?
Four nails per shingle is widely accepted as the industry standard, but warranty requirements and building codes may call for more.
Can roofing nails be too long?
Can Roofing Nails Be Too Long? A nail that is 3-inches (or longer) could poke through the decking and protrude through the attic ceiling.
What size nails should I use for second layer of shingles?
You should use one-quarter-inch nails for a standard-thickness shingle, and one-half-inch nails for special-thick shingles.
What size nails do you use for roofing shingles Related Questions
Are 2 inch roofing nails too long?
Typically, a roofing nail measures anywhere from 1 to 2 inches. A roofing nail should be long enough to penetrate the shingle and then as the plywood or OSB decking beneath by at least 3/4 of an inch. The sheathing thickness can vary, so you may need longer nails depending on the decking used.
What nails do I use for 3 tab shingles?
NAILING: Use galvanized (zinc coated) roofing nails, 11 or 12 gauge, with at least 3/8″ diameter heads, long enough to penetrate through plywood or 3/4″ into boards. Use 4 nails per shingle placed 6-1/8″ above the butt edge, 1″ and 13″ in from each end and 1/2″ above each cutout.
How far should roofing nails penetrate?
Nails should be long enough to penetrate 3/4 of an inch into a roof deck; if a roof deck is less than 3/4 of an inch, nails should be long enough to penetrate and extend at least 1/8 of an inch through the roof deck.
Is hand nailing shingles better?
Roofing manufacturers have determined that hand-nailing shingles and using a nail gun are both valid methods of installing shingles, so it is not a reflection on your roofer’s work quality level if they choose one over the other.
Do you nail shingles in the tar strip?
Because the thickness, weight, and shape of shingles vary, manufacturer’s instructions vary slightly. But virtually all manufacturers agree that nails should be installed below the adhesive strip.
Should nails be exposed on a roof?
Ideally, you should never see the nails on your roof. Properly installed nails should be flush to the shingle they are inserted into and covered by the shingle above them. The ensures that they are secure and unseen.
What is the best roofing nail?
Galvanized Steel (Best Choice) For all these reasons, galvanized steel is the best roofing nail material and one of the most popular choices for certified roofers that back their work with a reliable warranty.
How many nails do I need for 4 bundles of shingles?
Generally, you should use four nails per shingle in the field of the roof, and 5 nails per starter shingle. For regular three-tab shingles, this would require 320 nails per square for field shingles.
How much gap do you need for shingles?
The recommended maximum gap between roof sheathing boards for low-quality, 3-tab shingles is 1/4-inch.
Are you supposed to remove the plastic strip on shingles?
Once shingles are installed, the cellophane strips no longer align with the adhesive, and the cellophane does not have to be removed. In fact, it should not be removed because it often carries printed information about the shingles.
What is the most common length roofing nail?
If you’re using typical architectural shingles and 3/8-inch-thick sheathing, you’ll need 1‚Äêinch nails. If your building codes require thicker sheathing, you’ll need 1 ¬º-inch nails. When installing thicker shingles, you may need to use a longer nail in order to penetrate the OSB beneath fully.
Why do roofing nails have large heads?
Roofing nails: Have a wide nail head to keep house wrap, sheathing and roofing felt in place. More commonly found as ring shank nails, they sometimes will have twisted shafts for increased holding power. Short and stocky roofing nails are galvanized to resist corrosion while keeping shingles in place.
Are shingle nails supposed to go through plywood?
The plywood of your roof is typically not as thick as your standard galvanized steel roofing nail, so it is expected for nails to show through this in your attic. The plywood can and is expected to take a bit of damage over time and this is okay as long as the shingle has something firm to hold itself down onto.
How do you keep 3-tab shingles straight?
Snap horizontal chalklines to help you keep the courses straight. First, snap a line for the top of the starter course, whose bottom will be flush with the waterproof shingle underlayment (WSU) or felt underlayment (which overhangs the drip edge by ¬Ω inch). Then snap lines for every course or every other course.
Do people still use 3-tab shingles?
Due to being outdated and of lower quality, most reputable roofing contractors will only install 3-tab shingles when that’s the only way to match other shingles or when Homeowners’ Associations specifically require them.
Why do shingles have 3 tabs?
A 3-tab shingle roof has a flat layer, so it doesn’t provide any sort of ‚Äúdimensional thickness‚Äù. As a result, they are lighter. They also cost less than architectural shingles. With an average weight of 240 lbs per square, three-tab shingles can withstand a maximum of 60 mile-per-hour wind speeds.