As long as the OSB is free of flaws, it can be covered with vinyl flooring. Any rough patches on the OSB should be sanded down to prevent the vinyl flooring from picking up the flaws and transferring them to the new floor.
Will vinyl stick to OSB?
Gluing vinyl sheet and tile flooring directly to OSB subfloor panels is not recommended by flooring manufacturers or even OSB manufacturers. Plywood should be used as an underlayment between the actual foundation and the flooring material.
Can you put flooring over OSB?
Getting the OSB Subfloor ReadyPrior to installing hardwood flooring, the OSB subfloor must be stabilized to prevent movement. Install OSB subfloors with a 1/8-inch gap between each panel.
How do you install laminate flooring over OSB?
In order to lay down new laminate flooring, planks can be cut to fit your plywood floor and then laid side-by-side. In order to align them perfectly, you will need to press them firmly into their joints until they make a “click” sound.