I have a retail clothing store client that keeps me busy and happy through the winter with small projects at their stores. The asked me to quote on replacing wallpaper in a couple of 5' x 5' change rooms. Wainscoting covers lower half, so were not talking about whopping square footages here folks, (just in case I get flamed for risking world peace by not calling in a pro).
The existing paper is vinyl, probably 5 years old. It's pretty secure except for a couple of tears where customers lift up a corner so they can stick tags in there and steal the clothes and say "look there's no tag on it, I bought it weeks ago, I'm not a shoplifter, waaaaaaaaaah!", (teenage girls do the darndest things).
So...can I go over top of the old paper? I assume I need to prime. Oil or latex?
If I peel off the old paper, aren't I in for a world of hurt if the drywall wasn't primed before the install? Remember this is a retail store, where work is usually of the slap and dash variety.