Position the first piece of plywood.
Plywood roof sheathing installation.
Cut each rafter tail on the chalk line with a circular saw to ensure that every rafter is the same length.
Correct installation of roof sheathing will ensure the best performance and help reduce complaints and callbacks.
Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply.
If using asphalt or fiberglass shingles postpone shingle installation as long as possible.
Choose an exterior c d grade.
Properly fasten panels including fastening and spacing hints step 4.
Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors.
And scroll down to see more details on each with installation hints and tips below.
Common roof sheathing applications and installation recommendations are described in the related publications listed at right.
Ventilate the roof according to current building codes step 3.
Plywood is layers of wood plywood is made.
The connection between the roof sheathing and the structure is a vulnerable point that is known to fail during a hurricane.
Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each.
Thickness will range from 3 8 to 3 4 inch depending upon local code.
Install shingles according to manufacturer s recommendations.
Plywood and oriented strand board osb are used in roof sheathing systems ranging from simple single family residences to large commercial buildings.
For best appearance use heavier weight shingles or laminated or textured shingles.
Make sure to leave a 2 3 mm gap between boards.
This will provide time for roof sheathing to adjust to humidity and moisture conditions.
Installing the plywood sheets.
How to install roof sheathing 1.
The plywood is nailed at roughly 150 mm spacings ensuring the ends finish on the centre line of a truss.
Use a staggered pattern when building up rows of plywood sheets.
This video shows how some roofs fail under heavy winds in uplift situations.
Keep these tips in mind when roofing in hurricane areas.
Check the nailing surface is level step 2.