Because of this manufacturing process osb is at least half the cost of cdx plywood.
Osb vs plywood for roofing.
You can consider this as an advantage but it can also have some drawbacks.
Osb vs plywood screw holding.
This is why plywood is considered as the better option for roofing.
New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well.
Performance over a long period of time.
Plywood is better than osb for subfloors.
Plywood is the ideal material for places having a wet weather condition.
Screwe holding ability is a critical matter in roofing.
Osb boasts a more consistent density.
Compared to cdx oriented strand board osb is made very differently.
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.
When the roofing material cannot hold nails and screws properly of course they cannot hold its shape very well.
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.
You won t have to worry about the material expanding anytime soon like when you use osb.
The reason is very very simple.
Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons.
Both plywood and osb will meet the code.
There is nothing wrong with plywood but for me personally we always go with the osb he says.
Lipinskiy says that both plywood and osb are sufficient but that he does prefer osb.
Although we did mention that there is an osb today which is manufactured to be resistant to wet conditions.