Is Osb Good For Roof

Every building authority in the united states except for one allows the use of osb for roof sheathing.

Is osb good for roof.

Talking about plywood or osb for roofing you cannot miss the information of the cost. With edge support and the same snow load 3 8 inch osb can be used. Oriented strand board commonly referred to as osb is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands. Answer osb roof panels should always be installed with the grade stamp facing into the attic and the screened surface with the nail guide lines facing up.

It is true as the price of every osb board is around 15 20 per sheet 4 8 sizes. When the grade stamp is covered by roofing the building inspector will not be able to confirm that the correct osb roofing panel was used. Osb panels often have lines at 16 and 24 in. New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well.

We also use it for roof sheathing and in furniture. Both plywood and osb are used for sheathing roofs walls and subfloors. Osb is widely used as roof decking material. It has better structural integrity than plywood it s less expensive and contemporary.

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. Intervals so you know where underlying studs rafters and joists are for nailing. Plywood is better than osb for subfloors. Osb sheathing costs a few dollars less per sheet than 1 2 in.

For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load. Osb has its advantages. A homeowner recently wrote and asked me the following regarding osb roof decking. For plywood it is like 5 to 10 more expensive.

In our area 1 2 in. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons. It is generally believed that osb is cheaper than plywood.

Some panels have a textured surface which makes them less slippery when used for roof sheathing.