Thicknesses range from 5 16 to 3 4 inch and the proper.
Osb or plywood for garage roof.
Another issue that many people encounter is what size plywood the roof may need.
New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well.
With edge support and the same snow load 3 8 inch osb can be used.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Osb is now used for about 70 percent of all floor wall and roof sheathing in north america.
Fortunately this is one issue that has primarily been standardized by the industry.
Different material options types of roof plywood.
However you might find that osb can better suit your needs than plywood for the roof.
Building codes the engineered wood association architects and most builders rate plywood and oriented strand board obs sheathing equal in strength and durability.
Plywood is better than osb for subfloors.
Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons.
In 2001 oriented strand board surpassed plywood in terms of square footage produced.
We ll discuss plywood vs osb more later.
Yes there are several different material options and.
Both plywood and osb are used for sheathing roofs walls and subfloors they work equally well for these uses are just as easy to drill into and have equivalent ability to hold nails.
As a warning it s considered by some to be inferior in quality as compared to plywood.
Rafters run from the peak of the roof.
The minimum plywood for roofing.
Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
However osb is generally considered less resistant to water it swells in thickness when exposed to moisture and some people prefer plywood for roofs and subfloors.
Speaking of osb it s a top choice of homeowners looking for something more affordable than plywood.