Plywood Roof Sheathing Overhang

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.

Plywood roof sheathing overhang.

Every piece meets the highest grading standards for strength and appearance. A is smooth and knot free while d the lowest quality has missing knots and cracks. Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. Choose an exterior c d grade.

Cover sheathing with. Properly fasten panels including fastening and spacing hints step 4. At exposed roof overhangs the sheathing must be rated for exposure to the weather. The common grade of plywood for roof sheathing is cdx.

Thickness will range from 3 8 to 3 4 inch depending upon local code. Then we re going to use a scrap of 2x4 to space off the square and strike a line there. Check the nailing surface is level step 2. As a quick primer in plywood each side is rated from a to d.

Plywood sheathing delivers outstanding stiffness strength and versatility. And scroll down to see more details on each with installation hints and tips below. It adds proven performance and durability to new homes room additions and renovations. Ventilate the roof according to current building codes step 3.

It also holds roofing nails well. This indicates the truss tails. Things needed tape measure chalk line circular saw 4 foot by 8 foot sheets of 3 4 inch plywood or osb framing nailer.