Hi guys, got an external stone wall that is damp, (inside coming out) that a customer wants hydraulic lime rendering. Done it many time before but not over a damp wall. Will the lime render control the damp? Thanks in advance!
Do something at the top to stop it, any pics?Haha I know it's a funny one this. The wall is adjacent to the back yard of my customer who is building an extension near to this wall. He wants the damp.controlled before his walls go up and there is no more access to it
The customer is going to install a valley above the new cavity, and also vent it. Seems a bit risky though. How often do customers say one thing and do another! The only reason I'm considering doing it is the guy is offering top dollar. Never experienced damp coming from in to out before! Had an email from a lime expert who says do NOT use lime
Agree, jgreenplastering usually it's from either up or down........unless.....the neighbour has a leaky indoor pool in that room!!!! hahaYou'll never get damp from the inside out.
It's either from above as already mentioned or its from ground up!
I'd put the valley so it's over the cavity and vented somewhere or its gonna get trapped and get worse.
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