Damp problems: How we analyzed and treated them
11th April 2014 at 17:49 #790100
dandazParticipantJoined: 30 Jun 2005Location: 17Total posts: 1431
what is the white stuff on the tiles?
we have no damp, but we have everything else..
i thought you were younger…13th April 2014 at 07:55 #790099
jakParticipantJoined: 14 Mar 2006Location: N/ATotal posts: 41
Thomas 16 Thanks for the reply. The black plastic had small holes which would allow the water to run through. Don’t know what to do now as don’t want to make a costly mistake, we need to cover a fairly large area. We haven’t seen any green geotextile but will go and look again.13th April 2014 at 20:14 #790098
chris-le-bricoleurParticipantJoined: 03 Dec 2010Location: NL and 52Total posts: 138114th January 2016 at 14:34 #1679699
chris-le-bricoleurParticipantJoined: 03 Dec 2010Location: NL and 52Total posts: 1381
Triggered by a discussion in another thread I want to give some additional information about the moisture problem in our living room, see the text between pic.12-21.
The wall I described there is the former outside wall of house no.1, 70cm thick. Later on, I think around 1880, house no.2 was built against this wall. When in the seventies or eighties of the last century the uncle of the last French owner replaced the tomette floor by ceramic tiles grouted with cement, he experienced moisture problems on this wall. His son, the last French owner of our house, placed wooden boarding against this wall. He used a technique similar to the one shown on pic.29.
In the course of the renovation of this wall we removed these panels. Most of them were just wooden panels, but we discovered that a portion of the boards had sticky aluminium foil on their backside. And the limit of the moisture was higher behind these panels. Of course, since the rising damp could not evaporate from the lower sections, it had to rise higher in the wall. This is what is often called ‘forcing moisture up into the walls’ when parts of the building are sealed with damp proof material.
The moisture profile was as shown on pic.30
What I’ve done after two years’ drying is shown in pic. 20 and 21.
Now, after twelve years, still no problems.
Christian - bricoleur par passion, pas par necessité http://www.klussen-in-frankrijk.eu/1st March 2016 at 21:32 #1692535
debraParticipantJoined: 05 Dec 2008Location: CharenteTotal posts: 5278
My kitchen had that sort of panelling and behind it was three layers of wallpaper plus a layer of polystyrene. I took the whole soggy mess off, took the damp plaster off up to the height the panelling had been, filled the gap and then reskimmed the wall. So far, it’s not damp at all, even though the ground is a bit higher outside than the base of the wall inside. I’m not sure I’d risk smothering it with fitted kitchen units though.