I have installed a 18mm OSB(Oriented StranBoard) on a dormer. I should've used 18mm WBP Exterior Grade Plywood.
If I leave the OSB board will it affect the dormer when completed?
Do I leave the OSB board or remove OSB board and replace with WBP Exterior Grade Plywood?
If I leave the OSB board will it affect the dormer when completed?
Do I leave the OSB board or remove OSB board and replace with WBP Exterior Grade Plywood?