Dave Plowman (News) wrote in message ...
Your treatment attempts to deal with 'rising' damp.
Does it?
The general view these
days is that *genuine* rising damp is actually rare, and that most who
recommend treatment for similar symptoms - even if they do exist - are
more likely to be profit motivated.
I've never believed in it in brick built houses and, if it does exist, it's
likely to be combined with penetrating damp. Fact is I don't really care
where it's coming from. The wall is damp and you want to stop that
penetrating to the inside so you put a barrier there which prevents water
coming in but allows water vapour to escape. Easy to do, no drying time, and
leaves you a good finish to decorate.