Screws Or Nails For Roof Sheathing

There is a common misconception in the building industry that screws always outperform nails when attaching wood to wood.

Screws or nails for roof sheathing.

The norbord experts. The cheapest and easiest is to re nail or better yet screw down the sheathing when you replace your roof covering. Generally you ll need to place two nails at each location where it makes contact with a roof truss. Slats of wood used for roof sheathing are lumber boards with face widths ranging from 4 to 12 inches.

Nails are often preferred for structural joining including framing walls because they are more flexible under pressure whereas screws can snap. The ten most important fasteners for installing roof sheathing. The framing crews were starting their nails 2 to 3 inches and as much as 6 to 8 from the edge of the panels on the intermediate trusses. The ol sage builder.

The attachment of roof sheathing can be improved in one of two ways. Roe osborn a senior editor at jlc responds. We use atleast 2 1 4 to 2 1 2 screws to put down 1 2 inch plywood or osb but most of the time we use 2 3 8 coated coil nails also known as 8 s for hand nailing. It s true that screws have a highly effective withdrawal resistance which makes them excellent fasteners for tasks such as avoiding squeaks in flooring assemblies resisting uplift forces that occur in roofs and holding deck ledgers tight to a building.

Deformed shank i e ring or screw shank nails are required near ridges gables and eaves in areas with design wind speeds over 110 mph 3 second gust but it is rec ommended that deformed shank nails be used throughout the entire roof. Fasten roof sheathing panels properly fasten panels with a minimum of 8d common 0 131 inch by 2 1 2 inch nails spaced a maximum of 6 inches on center at supported panel ends and edges. For slats featuring face widths of 12 inches you will space three nails evenly apart about every 3 inches. Rafters to walls use 16d common spiral hot dipped galvanized nails or 10 3 acq rated screws toenail with 3 to the plate or end nail with 3 roof sheathing to rafters 8d common spiral nails.

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