QA

Quick Answer: What Size Nails For Roofing Plywood

Traditional sheathing material typically comprises 15/32-inch plywood or oriented-strand-board (OSB) panels. Builders generally use 8d common nails, which are approximately 2 ½ inches long and 131/1000 inch wide in diameter.

Should I use screws or nails for roof sheathing?

Screws can be used for even greater withdrawal strength, but should be sized by the building designer. Staples are not recommended for roof sheathing attachment in high-wind areas. It is extremely important to have proper fastener spacing on all panels.

What kind of nails do you use for sheathing?

The demand/capacity calculations for sheathing-attached systems are based on 6d common or 8d box nails with 6” o.c. edge and 12” o.c. field nailing that fasten 15/32” or thicker plywood or OSB to rafters at 24” on center. Building codes since the late 1990s have required sheathing nails to be at least 8d box (.

Can I use 1 inch roofing nails?

In southern parts of the country where they don’t need to deal with snow loads, it’s acceptable to use 3/8″ roof sheathing, which means it’s also acceptable to use 1″ roofing nails on asphalt shingles. A 1″ nail will fully penetrate through 3/8″ roof sheathing, but it won’t fully penetrate 1/2″ sheathing.

Do roofing nails go through the sheathing?

It is crucial that roofing nails of the correct length were used to secure the shingles. The sharp tip of the roofing nail should pass through and extend approximately 3/8-inch past the underside of the roof sheathing. It is possible that your roof sheathing might consist of numerous tongue and groove 1-by-6 boards.

What size roof nails should use?

Roofing nails should be 1-1/4 to 2 inches long to ensure that it sufficiently penetrates and embeds in the roof sheathing. To calculate the appropriate roofing nail length, add the thickness of the shingles and underlayment to the thickness of the sheathing. Nail shank diameter should be at least 11-12 gauge for roofs.

Can I use a framing nailer for sheathing?

The answer is, yes. Framing nail guns can be used for siding installation, if the nail being used is long enough to attach the siding firmly to your exterior wood sheathing. While it’s recommended to always use a siding nail gun for siding installation, in a pinch, you may be able to use a framing nailer instead.

How long is a 6d nail?

Answer: A 6d nail is 2 inches long. Note: The “d” means “penny.” For example, a 10d nail is a 10-penny nail.

What is the nail fastening schedule for roof sheathing?

As such, the nailing schedule is typically the familiar 6 inches on center at supported panel edges, including gable-end walls and 12 inches on center over intermediate panel sup- ports. Note, however, that minimum 8d nails (0.131 x 2-1/2 inches) are recom- mended for all panels 5/8 inch thick or less.

What nails should I use for OSB sheathing?

A hammer and 8d nails are standard for installing OSB, but you can speed up the installation by using a nail gun.

What kind of nailer is used for roof sheathing?

It is recommended to use a heavy duty nailer as a framing nailer for sheathing plywood. This is because the fastener will take all the load off of the nailer and framing nailers can accommodate long nails.

How long should roofing nails be?

The length of each nail must be a minimum of 1¼ inches long, and for roof-overs, Atlas recommends a nail length of at least 2 inches. Nails of the proper length should penetrate three-fourths of an inch into the roof deck.

How long is a standard roofing nail?

About 70% of roofs in the United States are made from asphalt shingles, and most roofing nail guidelines use the asphalt shingle as the standard. For attaching asphalt shingles to standard decking, nails can range in length from 1 inch to 2 inches. But some applications may require longer nails up to 6 inches long.

How long should the nails be in an asphalt shingle roof installed over 1 2 OSB sheathing?

Whatever fasteners are used, they have to be of adequate length. Nails should penetrate a minimum of 3/4-inch (19mm) into the sheathing, or just through the roof sheathing if it’s 1/2-inch plywood or OSB.

How far should roofing nails penetrate the sheathing?

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.

Should roof nails go through plywood?

For most decking materials, such as solid wood, plywood, OSB (oriented strand board), and non-veneer wood, roofing nails should be around 19 mm long and penetrate the decking at least 3/4 of an inch. Ideally, they’ll puncture the decking entirely, meaning that the whole tip goes past the decking.

Should roofing nails be visible?

Yes, and there are two types of nails that are normal to see in an attic: 1) The ring-shank nails used to secure asphalt shingles to the plywood or OSB roof sheathing typically penetrate into the attic 1/4” or more.

What does a roofing nail look like?

All roofing nails have wide, flat heads and short shanks. The tips of the nails are sharp and pointed for easy insertion so you don’t break the shingles or damage the wood when driving the nails through. Different roofing materials require different types of roofing nails.