Osb Vs Plywood Roof

A few other downsides to plywood.

Osb vs plywood roof.

At the end it will be your consideration to choose between performance and cost. Eventually you can decide which one to use between plywood vs osb for roofing. As osb is cheaper than plywood and has the strength and durability of plywood it is becoming more widely used than plywood. Today osb has 70 75 market share and plywood has about 25 share.

Plywood has better performance when it comes to overall durability. However osb is a lot cheaper and more affordable to buy. Osb was introduced in the 1970s and steadily gained market share from plywood surpassing plywood in production in 2000. Unfortunately an osb is less resistant to water compared to plywood.

Plywood is better than osb for subfloors. Osb boasts a more consistent density. However when it is penetrated by water it takes a very long time to finally dry out compared to cdx plywood. How it s made plywood vs.

Oriented strand board osb board that soaked in my bathtub overnight swelled almost 1 4 in. Because of this manufacturing process osb is at least half the cost of cdx plywood. And stayed swollen while the plywood remained stable. Alternatively osb is created from wood chips resin and adhesive that is baked and formed into the shape of a sheet of plywood.

Osb these sheets of wood may look similar but they are not created the same. Osb panels can be manufactured in lengths up to 16 feet or sometimes even higher while plywood is generally limited to 8 to 10 feet. It is extremely resistant to moisture. Compared to cdx oriented strand board osb is made very differently.

Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons. It becomes soft and weak when it delaminates. The curb appeal of your home is lost because soon your shingles will start to misalign creating an eyesore on the top of your home. While a sheet of plywood might be 5 to 7 plies thick a sheet of osb is made from as many as 50 strand layers packed and compressed into the same thickness.

Plywood is created by taking extremely thin sheets of wood called plies and gluing them together. Water test the edges of the 1 2 in. Despite also being susceptible to water damage lipinskiy says that. The thickness of the plywood can be controlled by the number of plies glued together.

Osb is made by combining glue resin and wood chips and pressing them into the shape of a plywood sheet then baking everything together. Thankfully there are osb materials today that are designed to be moisture resistant. Both of them are great for roofing. This is one of the reasons why some people prefer using plywood for their roof or subfloor.