So can anyone tell me how to diagnose a damp interior wall please?

Can condensation really be the cause of very damp bricks. What is the
standard solution for that?

Thanks,

Ed.


Andrew Gabriel wrote:
In article . com,
"Ed_Zep" writes:
A plasterer has just finished a chemical DPC at my house and
replastered. One of the walls was really bad but it's all done now.

Oh dear. Most injected DPC are just a method for ripping off
punters. It's very rare that they fix any kind of damp.

This same wall, a few days later is still damp

Not surprising. A damp wall will take weeks to dry out, but
if the cause of the damp was wrongly identified, it will never
dry out.

(he used Limelite
Renovation for both layers). I'm just wondering how long I should wait
until for this patch to dry out.

I don't know this plaster, but a full scratch and finish coat will
take many days to dry out anyway, plus however long the wall takes
to dry out.

Is there any paint-on damp proofing that I could use to cure this
remaining problem?

No, at least not without accurately identifying the cause of the
damp, and not at all if it's condensation (which is a very
common cause).

--
Andrew Gabriel