Repairing or resurfacing Drywall
I need advice on how to repair or resurface drywall. Tore down old wallpaper in a small bathroom and the original drywall is in solid shape (from the 70s), however there are large patches where the surface is down to the brown paper looking stuff, and other spots just make the whole area an inconsistent surface to work with so it is more than a patch job. so the entire wall needs to be resurfaced i suppose. this is just the top half as the bottom half is all tile, so i want to keep this project to working with the top half and hope that the drywall doesn't need to be replaced. would the best option be to apply and sand down a couple coats of joint compound over the entire wall area? or are there other techniques or products that would be better?