"Owain" wrote in message
...
"Paul" wrote
| I live in a 1930's stone built house and in the smallest bed room
| we've always had a bit of damp showing as black on the wall paper, this
| small room does have a vent to the outside. I've tried the spray on
| damp seal but this did'nt help too much. So I am preparing to strip all
| the wallpaper off and then "do something"?, what that something is I'm
| not sure. I've heard its best to then drywall it, but being about as
| good at d-i-y as I am at grammer I'd rather not, is there another
| solution?. Things I've heard are
| 1. Strip all the plaster and apply a "special" plaster
| 2. Cover the plaster with a polystiryen sheet before papering
| 3. Some special "plaster" damp paint.
| 4. And ofcourse drywall.

None of the above until you find out what is causing the damp.

Agree. But do strip the plaster off as this will help you find it and dry
everything out.