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- 19 Apr 2009
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Can anyone help out there?
I have a solid wall (530mm) made from local stone with lime mortar. The exterior is faced with a rendering, which I suspect is a cement rendering put on with a tyrolean and not a lime based product which would allow the wall to 'breath' (But not positive.)
The base of the wall, to a height of approx 760mm/30" is rendered with a cement decorative rendering.
Inside the same wall to chest height is plastered "Aquaboard" or French equivalent. Above which is plaster (possibly lime based)
While this type of wall has to retain some degree of moisture, what we have is capillery action damp. Some so called experts recommended chemical injection, but I've heard from other sources that in this type of wall, it is unlikely to form a solid membrane.
Sorry its so long to get to the point, which is, If I remove the lower cement rendering on the outside, to be replaced by new lime mortar, then rip out the aquaboard and make good with a lime plaster (pig to work with) do I have a good chance of profiding sufficient 'breathing' for the moisture to despell and thus solving the problem?
Phew, it would have been an easier explanation if you could have seen my arms waving about!
Seriously any advice is most welcome.
Regards
Jim
I have a solid wall (530mm) made from local stone with lime mortar. The exterior is faced with a rendering, which I suspect is a cement rendering put on with a tyrolean and not a lime based product which would allow the wall to 'breath' (But not positive.)
The base of the wall, to a height of approx 760mm/30" is rendered with a cement decorative rendering.
Inside the same wall to chest height is plastered "Aquaboard" or French equivalent. Above which is plaster (possibly lime based)
While this type of wall has to retain some degree of moisture, what we have is capillery action damp. Some so called experts recommended chemical injection, but I've heard from other sources that in this type of wall, it is unlikely to form a solid membrane.
Sorry its so long to get to the point, which is, If I remove the lower cement rendering on the outside, to be replaced by new lime mortar, then rip out the aquaboard and make good with a lime plaster (pig to work with) do I have a good chance of profiding sufficient 'breathing' for the moisture to despell and thus solving the problem?
Phew, it would have been an easier explanation if you could have seen my arms waving about!
Seriously any advice is most welcome.
Regards
Jim