Installing Osb On A Roof

The proper way to install osb span ratings.

Installing osb on a roof.

Ventilate the roof according to current building codes step 3. Osb roof panels should always be installed with the grade stamp facing into the attic and the screened surface with the nail guide lines facing up. This is usually a prerequisite in building codes. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

Select osb sheets. Install osb panels on aligned roof trusses. Ensure roof trusses are in proper alignment with no curves or uneven sections when installing osb to. Since a standard three tab asphalt shingle roof typically weights between 225 and 300 pounds per square the extra plywood will significantly increase the weight of the roof you install.

And scroll down to see more details on each with installation hints and tips below. How to correctly install plywood or osb roof sheathing. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. Install osb textured side up.

Osb sheathing has different textures on both sides as well. The screened surface also provides a little more traction for construction workers during installation. Properly fasten panels including fastening and spacing hints step 4. Cover sheathing with.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Most metal shingles will be attached to the roof using metal shingle. You may choose between sheets that measure half an inch or 3 4 of an inch thick. When the grade stamp is covered by roofing the building inspector will not be able to confirm that the correct osb roofing panel was used.

When you intend to install osb sheaths try to determine the breadth or the ideal measurement of your choice of material. If the inside finished ceiling height will be 8 feet you can hang 9 foot osb panels vertically on the exterior walls. Check the nailing surface is level step 2. Avoid the errors described when installing this roof sheathing.