Osb Vs Cdx Roof

Each of these materials has its own unique properties and qualities and so each is used in specific applications.

Osb vs cdx roof.

Cdx and osb are used for almost similar things but because they have different features one is better applied in some tasks and the other one on other tasks. It can withstand moisture for a brief period of time but may become warped and delaminated with consistent exposure to the elements. My personal opinion is that osb performs well on the wall and floor but stick to cdx plywood on the roof. 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.

How do cdx and osb differ in performance. Oriented strand board osb combines wood chips glue and resin into the shape of a sheet of plywood and bakes them together. Compared to cdx oriented strand board osb is made very differently. It is made of wood chips and glue.

The roof deck is the surface underneath your roof and roofing underlayment. Because of this manufacturing process osb is at least half the cost of cdx plywood. It is usually made of 4 by 8 sheets that should be 1 2 thick. Far too often i see osb sag between the trusses making your roof look wavy.

Cdx is best for sub flooring. It is also used for roof sheathing. Osd plywood osd and cdx plywood are both commonly found on construction sites because builders and contractors rely on both types of plywood to get the job done. Osb does not do well when it gets wet.

Odds are that if you pass a housing development of wood framed houses it will have osb oriented strand board as exterior sheathing. Far too often i see osb sag between the trusses making your roof look wavy. Although osb typically offers a higher shear rating which adds rigidity to your structure. Over the years i have seen claims for plywood decking delaminating which can cause squeeks and knocks between the ply s.

In such places it does not get in contact with a lot of moisture which prevents it from getting damaged. Cdx plywood is a construction grade type of plywood that is designed for exposure to the elements. My personal opinion is that osb performs well on the wall and floor but stick to cdx plywood on the roof. New homes will usually see a few rainfalls before a roof is on and as.

Osb is a cheap imitation of cdx. Osb is made by combining glue resin and wood chips and pressing them into the shape of a plywood sheet then baking everything together. When you count sub floors roofs and wall sheathing osb claims about 70 of the wood sheathing market in north america over plywood. It is made of multiple layers of thinly cut solid sheets of wood that are pressed together.

Although osb typically offers a higher shear rating which adds rigidity to your structure.