Osb is made by combining glue resin and wood chips and pressing them into the shape of a plywood sheet then baking everything together.
Osb vs plywood for roofing.
Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons.
When the roofing material cannot hold nails and screws properly of course they cannot hold its shape very well.
Both plywood and osb will meet the code.
You can consider this as an advantage but it can also have some drawbacks.
Osb boasts a more consistent density.
This is why you need to know the screw holding ability between plywood vs osb for roofing.
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.
Although we did mention that there is an osb today which is manufactured to be resistant to wet conditions.
The reason is very very simple.
Performance over a long period of time.
This is why plywood is considered as the better option for roofing.
Lipinskiy says that both plywood and osb are sufficient but that he does prefer osb.
Screwe holding ability is a critical matter in roofing.
Plywood is better than osb for subfloors.
As a homeowner if you find yourself in this position know that when you install a new decking system you will have to decide between using plywood or osb.
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 the ideal material for places having a wet weather condition.
New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well.
Osb vs plywood screw holding.
Compared to cdx oriented strand board osb is made very differently.