Osb2 And Osb3 Shed Roof

I need to reboard my shed roof before i fiberglass it or felt it haven t decided yet.

Osb2 and osb3 shed roof.

So does it matter on the what timber sheets i use to board the roof. 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. To be honest i want to spend as little as i need to. The screened surface also provides a little more.

Uses include structural roofing flooring panels agricultural buildings portable buildings type. Osb would be fine for a shed roof 18mm ply is going to be expensive. En 300 pack quantity. 16 07 kg moisture resistant.

Osb2 is great for structural non load bearing projects in dry conditions whereas osb3 performs better for structural load bearing use and for use in humid conditions. For shed construction there are two commonly used grades of osb. With the osb i normally give it a good couple of coats treatment and or acrypol if you can get it i got shed roof ps that have lasted absolute years with this treatment. Still as good as day 1.

Osb is so strong in fact that it is now used for about 70 of all floor wall and roof sheathing in north america and there are two different types of osb osb2 and osb3. The two grades of board look very similar and can only be distinguished visually by markings which are sprayed on to the board. Typical markings on osb panel. With the felt in top you have a very sturdy roof that wil last for years.

I roofed my stable with 11mm sheets covered with cheap shed kennel felt three years ago. 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. Osb3 sheets certifications met. 9mm 11mm or 18mm.

I need to cover approx 18m2. Will the thickness make a difference. No interior or exterior use. Does it has to be osb3 or will osb2 do.