DIYbanter - View Single Post - removing flaky old paint prior to plastering

In article ,
(ANt) writes:

Now that the dry-linings off, I'm having the sureveyor back to retest
the walls.

If the walls are just slightly damp, what you can do is to have a
scratch coat of sand/cement/waterproofer, which is more damp
resistant than a plaster scratch coat (make that sand/cement/lime/
waterproofer if the walls are lime mortar). Where I've replastered
external 9" brick walls, I've often used sand/cement/lime/waterproofer
as the scratch coat within 2-3 feet of ground level.

So it's apparent that there was a damp problem that a chemical DPC
didn't neccesarily cure.

They rarely ever do, because damp problems are rarely rising damp.

--
Andrew Gabriel