How To Install New Roof Sheathing

Use a staggered pattern when building up rows of plywood sheets.

How to install new roof sheathing.

Install a layer of roofing insulation as recommended by the roofing manufacturer. Check the nailing surface is level step 2. Hammer down any large nails that are exposed by the removal. Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each.

Installing the plywood sheets the plywood is nailed at roughly 150 mm spacings ensuring the ends finish on the centre line of a truss. Make sure to leave a 2 3 mm gap between boards. Position the first piece of plywood. To figure out for the sheathing snap line swing the square over to the pitch of the roof in this case it is a six pitch and strike a line right there.

How to correctly install plywood or osb roof sheathing. Inspect the underlying roof sheathing for damage and make any needed repairs. Then we re going to use a scrap of 2x4 to space off the square and strike a line there. Thickness will range from 3 8 to 3 4 inch depending upon local code.

How to install roof sheathing 1. Choose an exterior c d grade. Ventilate the roof according to current building codes step 3. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg.

When ordering the sheathing divide the total number of square feet of roof surface by 32 square feet a 4 x 8 panel and add an extra 15 for waste. This indicates the truss tails extending past the walls. Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents. And scroll down to see more details on each with installation hints and tips below.

Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length. Properly fasten panels including fastening and spacing hints step 4.