Plywood Roof Sheathing Installation

How to correctly install plywood or osb roof sheathing.

Plywood roof sheathing installation.

Keep these tips in mind when roofing in hurricane areas. Thickness will range from 3 8 to 3 4 inch depending upon local code. The connection between the roof sheathing and the structure is a vulnerable point that is known to fail during a hurricane. The plywood is nailed at roughly 150 mm spacings ensuring the ends finish on the centre line of a truss.

Choose an exterior c d grade. Plywood and oriented strand board osb are used in roof sheathing systems ranging from simple single family residences to large commercial buildings. And scroll down to see more details on each with installation hints and tips below. This will provide time for roof sheathing to adjust to humidity and moisture conditions.

Cover sheathing with. Ventilate the roof according to current building codes step 3. Installing the plywood sheets. This video shows how some roofs fail under heavy winds in uplift situations.

Correct installation of roof sheathing will ensure the best performance and help reduce complaints and callbacks. Check the nailing surface is level step 2. Plywood is layers of wood plywood is made. If using asphalt or fiberglass shingles postpone shingle installation as long as possible.

Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. For best appearance use heavier weight shingles or laminated or textured shingles. Position the first piece of plywood. Measure from the peak of the roof along each rafter on one side of the roof to determine the exact length of each.

Use a staggered pattern when building up rows of plywood sheets. During a hurricane the strength of the sheathing on the roof can greatly impact the homes ability to weather the storm. Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors. Install shingles according to manufacturer s recommendations.

How to install roof sheathing 1. Common roof sheathing applications and installation recommendations are described in the related publications listed at right.