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