Plywood Roof Sheathing Definition

Speaking of osb it s a top choice of homeowners looking for something more affordable than plywood.

Plywood roof sheathing definition. Panels designated structural i must meet all of the manufacturing and performance standards of rated sheathing as well as certain additional requirements. It is an excellent choice for light frame wall and roof assemblies in weather protected applications. Comes in standard 4 by 8 foot sheets is strong durable and relatively light. Every piece meets the highest grading standards for strength and appearance.

It s a top choice because of its characteristic wherein it expands evenly when exposed to water unlike osb wherein only the edges expand. The covering of a structural system on the wall roof ceiling etc. After you frame the rafters and ridge board you lay the sheathing on top to cover the entire frame. Roof sheathing also known as roof decking is a strong layer of wood boards that are fixed to your roof s joists and trusses.

Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors. Sheathing is normally plywood plyscore fiberglass panels insulation board etc. The use of sheathing is basically to provide a substrate for the finish siding material which could be masonry vinyl or any other finish material that is installed over the sheathing. The skin of the structure is created with the use of sheathing which can be made up of a variety of materials.

Structural i also referred to as struc i may be osb or plywood and is essentially a subcategory of apa rated sheathing. Plywood sheathing delivers outstanding stiffness strength and versatility. In roofing terminology sheathing plywood is the layer of material attached to the structural frame of the roof. Roof sheathing materials plywood.

Roof sheathing is usually made of either oriented strand board osb or plywood. It also holds roofing nails well. If you re in search of quotes for a roof sheathing job improvenet can put you in touch with up to four local contractors for free. It adds proven performance and durability to new homes room additions and renovations.

The common grade of plywood for roof sheathing is cdx. Any roof sheathing that could not tolerate at least as much relative humidity in the attic as exists outside of a ventilated attic space seems inappropriate for use. Your roofer will attach your shingles to these squares or planks of wood. What s roof sheathing made of.

Common roof sheathing applications and installation recommendations are described in the related publications listed at right. Plywood is made out of laminated sheets of veneer. And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity. Plywood and oriented strand board osb are used in roof sheathing systems ranging from simple single family residences to large commercial buildings.

Definition of sheathing in construction.