Osb Vs Plywood Roof

Plywood has better performance when it comes to overall durability.

Osb vs plywood roof.

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. However osb is a lot cheaper and more affordable to buy. New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well. When it gets wet the sheathing could swell and thicken up because of the moisture.

Both of them are great for roofing. 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. 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.

How it s made plywood vs. Thankfully there are osb materials today that are designed to be moisture resistant. Despite also being susceptible to water damage lipinskiy says that. Water test the edges of the 1 2 in.

This is one of the reasons why some people prefer using plywood for their roof or subfloor. The thickness of the plywood can be controlled by the number of plies glued together. Alternatively osb is created from wood chips resin and adhesive that is baked and formed into the shape of a sheet of plywood. Osb boasts a more consistent density.

Osb was introduced in the 1970s and steadily gained market share from plywood surpassing plywood in production in 2000. As osb is cheaper than plywood and has the strength and durability of plywood it is becoming more widely used than plywood. Eventually you can decide which one to use between plywood vs osb for roofing. Osb these sheets of wood may look similar but they are not created the same.

Plywood is created by taking extremely thin sheets of wood called plies and gluing them together. Because of this manufacturing process osb is at least half the cost of cdx plywood. It becomes soft and weak when it delaminates. It is extremely resistant to moisture.

Today osb has 70 75 market share and plywood has about 25 share. 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. At the end it will be your consideration to choose between performance and cost. Unfortunately an osb is less resistant to water compared to plywood.

However when it is penetrated by water it takes a very long time to finally dry out compared to cdx plywood. Plywood is better than osb for subfloors. Osb is made by combining glue resin and wood chips and pressing them into the shape of a plywood sheet then baking everything together. And stayed swollen while the plywood remained stable.