This summer I purchased a 35 yo bungalow with attached 20'x20' garage that I'm planning a few upgrades in. The garage walls and ceiling are insulated with vapour barrier installed and finished with drywall, however the drywall is old and warped, and some sheets have come loose from their nails in a few spots.
Rather than replacing the drywall, I'd like to just install OSB over it (I'd like to avoid mudding and taping drywall if possible). Obviously, I'd install extensions to all of the outlet and switch boxes, and I'd paint the OSB white to brighten things up in there.
Is there any issues involved with this that I'm not considering?
Thanks in advance,