Roof Sheathing Which Side Up

Avoid the errors described when installing this roof sheathing.

Roof sheathing which side up.

Comes in standard 4 by 8 foot sheets is strong durable and relatively light. Ensure roof trusses are in proper alignment with no curves or uneven sections when installing osb to sheathe roofs. The common grade of plywood for roof sheathing is cdx. Aligning sheathing with the edge of the roof rather than perpendicular to the rafters.

It also holds roofing nails well. 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. Attaching the sheathing wrong side up. Roof sheathing materials plywood.

As a quick primer in plywood each side is rated from a to d. Curved or uneven roof trusses will cause osb roof sheathing to warp or buckle under roof coverings. It should be placed up on the roof. Avoid installing osb with the textured side down.

You might wonder why the shiny side facing down wouldn t just reflect heat back into the attic. 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. 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. Basically plywood or osb sheathing with a thin aluminum facing on one side radiant barrier sheathing installs like any other roof sheathing.

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. 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. You just have to keep the shiny side face down.

Install osb panels on aligned roof trusses. How to correctly install plywood or osb roof sheathing. Foil insulation is a radiant barrier and it works by.