Plywood Roof Sheathing Overhang

In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.

Plywood roof sheathing overhang.

At exposed roof overhangs the sheathing must be rated for exposure to the weather. The everyday sheathing used on the body of a roof is not rated for weather exposure so when exposed eaves and or rakes occur at the perimeter a different more expensive weather rated grade of plywood or osb must be used. Thickness will range from 3 8 to 3 4 inch depending upon local code. Plywood sheathing delivers outstanding stiffness strength and versatility.

It also holds roofing nails well. Every piece meets the highest grading standards for strength and appearance. It is an excellent choice for light frame wall and roof assemblies in weather protected applications. Comes in standard 4 by 8 foot sheets is strong durable and relatively light.

Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. A is smooth and knot free while d the lowest quality has missing knots and cracks. The common grade of plywood for roof sheathing is cdx. Things needed tape measure chalk line circular saw 4 foot by 8 foot sheets of 3 4 inch plywood or osb framing nailer.

Then we re going to use a scrap of 2x4 to space off the square and strike a line there. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. This indicates the truss tails. Choose an exterior c d grade.

Roof sheathing or decking is one of those elements.