I've laid some 8' x 4' x 9mm OSB as a sub floor for my new shed, but despite covering it with 2 layers of polythene sheeting as protection against the rain till the shed is constructed, it is showing signs of wet patches.
If I remove the sheeting and allow it to dry out will it dry out without distorting or will it swell up like chipboard and be useless?
I've never used OSB before so I'm not familiar with it's wet resistant properties.
If I remove the sheeting and allow it to dry out will it dry out without distorting or will it swell up like chipboard and be useless?
I've never used OSB before so I'm not familiar with it's wet resistant properties.