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.
How to install new roof sheathing.
Properly fasten panels including fastening and spacing hints step 4.
Cover sheathing with.
Position the first piece of plywood.
Hammer down any large nails that are exposed by the removal.
How to correctly install plywood or osb roof sheathing.
How to install roof sheathing 1.
Use a staggered pattern when building up rows of plywood sheets.
Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each.
Ventilate the roof according to current building codes step 3.
And scroll down to see more details on each with installation hints and tips below.
Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg.
Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents.
We go in depth on how to install roof sheathing.
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.
Choose an exterior c d grade.
Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length.
Make sure to leave a 2 3 mm gap between boards.
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.
Thickness will range from 3 8 to 3 4 inch depending upon local code.
Installing the plywood sheets the plywood is nailed at roughly 150 mm spacings ensuring the ends finish on the centre line of a truss.
This indicates the truss tails extending past the walls.