Osb Vs Plywood Roof

Alternatively osb is created from wood chips resin and adhesive that is baked and formed into the shape of a sheet of plywood.

Osb vs plywood roof.

How it s made plywood vs. 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. When it gets wet the sheathing could swell and thicken up because of the moisture. As osb is cheaper than plywood and has the strength and durability of plywood it is becoming more widely used than plywood.

Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons. Water test the edges of the 1 2 in. Thankfully there are osb materials today that are designed to be moisture resistant. Both osb and plywood absolutely hate water lipinskiy mentions going on to say that the most important part regardless of which decking option you choose is that all penetration points on a roof are sealed.

A few other downsides to plywood. 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. Oriented strand board osb board that soaked in my bathtub overnight swelled almost 1 4 in. Unfortunately an osb is less resistant to water compared to plywood.

And stayed swollen while the plywood remained stable. Plywood has better performance when it comes to overall durability. It becomes soft and weak when it delaminates. However osb is a lot cheaper and more affordable to buy.

Osb is made by combining glue resin and wood chips and pressing them into the shape of a plywood sheet then baking everything together. However when it is penetrated by water it takes a very long time to finally dry out compared to cdx plywood. Today osb has 70 75 market share and plywood has about 25 share. Plywood is created by taking extremely thin sheets of wood called plies and gluing them together.

Eventually you can decide which one to use between plywood vs osb for roofing. Because of this manufacturing process osb is at least half the cost of cdx plywood. Osb boasts a more consistent density. Osb these sheets of wood may look similar but they are not created the same.

Compared to cdx oriented strand board osb is made very differently. At the end it will be your consideration to choose between performance and cost. This is one of the reasons why some people prefer using plywood for their roof or subfloor. It is extremely resistant to moisture.

Both of them are great for roofing. 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. Despite also being susceptible to water damage lipinskiy says that. New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well.