M
masterbuilder
yes you usually do it in conjunction with whats causing the damp i.e rising, penetrating or from the roof.
We did a place last year that had for years a leaking slate roof and firewalls(party walls)
we did all the outside stuff, some of the walls inside were horrendous, you can't take shotcuts with it, if the damp is really bad (guage this by salt deposits coming through) in that house it was particularly bad right at the top of the landing (don't think the salts travelled all the way up there from the earth) it has to be treated in the way i described earlier but with perhaps 2-3 coats of vandex slurry.
you simply cannot leave it to dry out a bit, you get the job done, dried out decorated etc. no come back.
It's when the work is done badly you get problems, i.e no proper backing coat or old slurry left on shelf too long.
We did a place last year that had for years a leaking slate roof and firewalls(party walls)
we did all the outside stuff, some of the walls inside were horrendous, you can't take shotcuts with it, if the damp is really bad (guage this by salt deposits coming through) in that house it was particularly bad right at the top of the landing (don't think the salts travelled all the way up there from the earth) it has to be treated in the way i described earlier but with perhaps 2-3 coats of vandex slurry.
you simply cannot leave it to dry out a bit, you get the job done, dried out decorated etc. no come back.
It's when the work is done badly you get problems, i.e no proper backing coat or old slurry left on shelf too long.