Roof Sheathing Which Side Up

Attaching the sheathing wrong side up.

Roof sheathing which side up.

Answer 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. Comes in standard 4 by 8 foot sheets is strong durable and relatively light. Which side of your osb to paint norbord north american products lp topnotch sub flooring floors building products which side of your osb to paint norbord north american products osb hanging questions archive the garage journal board 5 tips for installing osb sheathing doityourself roof wall sheathing weyerhaeuser. Curved or uneven roof trusses will cause osb roof sheathing to warp or buckle under roof coverings.

Panels not meeting in the center of a truss or a rafter. Roof sheathing materials plywood. It also holds roofing nails well. The common grade of plywood for roof sheathing is cdx.

Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch. How to correctly install plywood or osb roof sheathing. You might wonder why the shiny side facing down wouldn t just reflect heat back into the attic. Install osb panels on aligned roof trusses.

Install osb textured side up. Avoid the errors described when installing this roof sheathing. You just have to keep the shiny side face down. Aligning sheathing with the edge of the roof rather than perpendicular to the rafters.

Basically plywood or osb sheathing with a thin aluminum facing on one side radiant barrier sheathing installs like any other roof sheathing. Avoid installing osb with the textured side down. 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. One side is usually better quality than the other c in this case.

Step 1 check the rafter ends tails you want to be sure they form a straight line. It should be placed up on the roof. As a quick primer in plywood each side is rated from a to d.