Roof Sheathing Material Plywood Vs Osb

Because of this manufacturing process osb is at least half the cost of cdx plywood.

Roof sheathing material plywood vs osb.

It is true as the price of every osb board is around 15 20 per sheet 4 8 sizes. Osb takes longer to get wet than plywood but also takes longer to dry out. Lipinskiy mentions that plywood delaminates and unfortunately manufacturers do not issue warranties when the plywood rots on account of the elements. This makes the material perfect for roofing and other types of use.

To be fair osb is not exactly best friends with water either. Compared to cdx oriented strand board osb is made very differently. You can have an osb that s larger than your plywood. Cost of plywood vs osb osb is cheaper than plywood by about 3 to 5 per panel.

Osb win against plywood when it comes to shear strength. It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads. Both types of panels contain phenol formaldehyde in the adhesive osb also contains isocyanurate resin but neither contains the urea formaldehyde which is quite toxic to humans. Talking about plywood or osb for roofing you cannot miss the information of the cost.

Home at current prices would cost about 700 more with plywood than osb. Home osb is about 700 less expensive compared with plywood if used as the subfloor sheathing and roof decking. It is generally believed that osb is cheaper than plywood. Unlike other materials an osb has a squarer and smaller dimension.

When used as a roof sheathing this tendency to hold moisture means it can degrade faster than plywood when exposed to chronic leaks. Osb is made by combining glue resin and wood chips and pressing them into the shape of a plywood sheet then baking everything together. Sheathing a 2 400 sq. It s simply the lesser of two evils according to lipinskiy.

Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. For a typical 2 400 sq. Oriented strand board osb combines wood chips glue and resin into the shape of a sheet of plywood and bakes them together. Not just that but most an osb is manufactured in different sizes.

It is often less expensive than cdx plywood because this manufacturing process doesn t require the same costly veneers found on the front and back of cdx plywood.