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.
Osb2 and osb3 shed roof.
I need to cover approx 18m2.
Will the thickness make a difference.
I roofed my stable with 11mm sheets covered with cheap shed kennel felt three years ago.
To be honest i want to spend as little as i need to.
Osb would be fine for a shed roof 18mm ply is going to be expensive.
Does it has to be osb3 or will osb2 do.
Osb3 is just as good as regular shuttering ply.
No interior or exterior use.
The screened surface also provides a little more.
I need to reboard my shed roof before i fiberglass it or felt it haven t decided yet.
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.
With the felt in top you have a very sturdy roof that wil last for years.
For shed construction there are two commonly used grades of osb.
Still as good as day 1.
En 300 pack quantity.
16 07 kg moisture resistant.
The two grades of board look very similar and can only be distinguished visually by markings which are sprayed on to the board.
Direction of text should run in direction of span.
Typical markings on osb panel.
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.
Interior or exterior use structural.
Osb3 sheets certifications met.
Uses include structural roofing flooring panels agricultural buildings portable buildings type.
9mm 11mm or 18mm.