You asked: Do roof sheathing nails need to be galvanized?

Assuming you are hand nailing, the APA suggests 6d for =/< 1/2" wall sheathing and 8d for roof sheathing. ... Your roll roofing should be applied with hot dipped galvanized nails, 1" long (electro-galvanized is fine if using a roofing gun).

What nails are used for roof sheathing?

Builders generally use 8d common nails, which are approximately 2 ½ inches long and 131/1000 inch wide in diameter. The nails should be spaced no more than 6 inches apart and attached 3/8 inch from the sheathing panel ends and edges, according to the Engineered Wood Association.

Can I use framing nails for roof sheathing?

1 Answer. Roofing nails are a bad choice for attaching sheathing. The wire gauge is too small and the hardness of the nail shank is much less than a framing nail. I personally like to use 6d or 8d ring shank nails for OSB.

Is it better to nail or screw roof sheathing?

The cheapest and easiest is to re-nail or, better yet, screw down the sheathing when you replace your roof covering. The other approach is applying an AFG-01 rated adhesive to enable the roof sheathing to withstand pressure to 250 pounds per square foot or greater.

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Can I use roofing nails for OSB?

If you need to install new roof decking or OSB, you’ll need to nail it to the roof truss. There are fewer requirements for these nails than those used to secure shingles. Common nails, or even wood screws, may be acceptable nails for OSB roof sheathing.

Can I use 3 inch nails for sheathing?

Nail Types

The type of nails you’ll need to use during the sheathing process depends on the roof material thickness. You should use 3-inch ring shank nails to allow at least 1 1/2 inches of truss penetration when working with lumber slats.

What is the best thickness for roof sheathing?

The recommended thickness for roof sheathing is ⅝” thick. Sheathing with a thickness of less than that is much more likely to result in bowing between framing which could potentially compromise your exterior roof material.

What size nails should you use for framing?

Nail size is more important than you might think when framing interior walls. Nails that are too long or fat are difficult to drive and can split wood, while short or thin nails just don’t do the job. The best nails for framing are 3 1/2 inches long. These are called 16-d, or “16-penny,” nails.

Why do roofers use nails instead of screws?

Nails are often preferred for structural joining, including framing walls, because they are more flexible under pressure, whereas screws can snap. Nails are also called upon when securing plywood sheathing for exterior walls, installing hardwood floors, and attaching siding and roofing.

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What is the best material for roof sheathing?

OSB is now the most-used sheathing and subflooring material for new roofs and roof replacements. OSB is currently selling for less than plywood by approximately $3 per sheet, meaning a savings of several hundred dollars per conventional home.

Should I use nails or screws for plywood?

To start with, most experts recommend screws over nails when working with plywood. Nevertheless, there are many projects built using nails with plywood. In most cases, the nails used are from a pneumatic finish nailer and are used in conjunction with wood glue.

What size nails do you use for shingles?

Fasteners for asphalt shingles shall be galvanized, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (2.67 mm)] shank with a minimum 3/8-inch-diameter (9.5 mm) head, of a length to penetrate through the roofing materials and not less than 3/4 inch (19.1 mm) into the roof sheathing.

Should plywood go under metal roof?

For many applications, a layer of plywood underneath your metal roofing is an unnecessary expense. … Boards measuring 1 inches by 4 inches or 2 inches by 4 inches are commonly used for purlins, though never use treated lumber because it will corrode the steel roof and fasteners.

Is 7/16 OSB OK for roofing?

…or a non-laminated panel, such as this OSB. Either one is acceptable. The typical thickness of roof sheathing is about 7/16-inch, which is just under 1/2-inch. … If you find 3/8-inch plywood installed as roof sheathing, it’s a good idea to make your client aware of its presence.

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Roofs and roofing