Plywood Roof Sheathing Installation
This video shows how some roofs fail under heavy winds in uplift situations.
Plywood roof sheathing installation. 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. Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors. Thickness will range from 3 8 to 3 4 inch depending upon local code.
Plywood is layers of wood plywood is made. And scroll down to see more details on each with installation hints and tips below. Choose an exterior c d grade. Cover sheathing with.
Install shingles according to manufacturer s recommendations. During a hurricane the strength of the sheathing on the roof can greatly impact the homes ability to weather the storm. Properly fasten panels including fastening and spacing hints step 4. 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. Installing the plywood sheets. For best appearance use heavier weight shingles or laminated or textured shingles. The plywood is nailed at roughly 150 mm spacings ensuring the ends finish on the centre line of a truss.
Plywood and oriented strand board osb are used in roof sheathing systems ranging from simple single family residences to large commercial buildings. Position the first piece of plywood. The connection between the roof sheathing and the structure is a vulnerable point that is known to fail during a hurricane. How to install roof sheathing 1.
Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. How to correctly install plywood or osb roof sheathing. If using asphalt or fiberglass shingles postpone shingle installation as long as possible. This will provide time for roof sheathing to adjust to humidity and moisture conditions.
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.