Ok . I'll try my best
I haven't commented cos I don't see a problem . Most people are taking the instructions and applications strait out f the book, but what they don't know is rising damp don't exist. Well, of course any company making money from it will deny it and rightly so. You can't stop water no matter how you tank it or block it. Do to its molecular structure water travels and always finds its way. The quickest way is when in contact with diferent type of surfaces, which always have diferent temperature, which transforms the water into hard , liquid or steam . I will not go down the road explaining what the other stages of water transformations are, it will take a wile
.
So, since I don't blive in " rising damp" , whatever this is, I will start from my point where I have said - water travels and you can't stop it, just liked to make my self clear n case you lost me with all water stages etc
In this case we have condensation build at the bottom of he walls , which might be caused by underground water , or cold spots.
Underground water can be reduced significantly with a French drain around the house and sorting out the gutter and pipes.Something like this can do the job
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In more severe cases you have to use the heavy artillery
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Of course the property has to be assessed my someone who know Mother Nature, not the local supplier of tanking and rising damp malarkey.
Moving forward, once the underground water is sorted, we move inside.
The biggest problem in modern houses and households is condensation. Condensation is when hot air meets cold spot and the water molecules in the air become bigger and bigger , this is when you see wet spots. Very visual on non porous surfaces like glass and steel. " Breathable" renders are very helpful n this case instead tanking the wall, which makes the problem even worse- soggy wall and water will move to another spot more warm and dry until it finds lower temperature spot and become damp. In this case will happen exactly this if the op tank the walls. Water will find its way, if is not on the other side of the wall then on the next one and instead fighting the water travel he better redirect the flow .
Another misconception is when modern building gets mixed with traditional buildings, but that's another story
. I will state only that the one is build to stop water from coming in and the other to let it out and be able to deal with it.Simples and there is no way to explain your lifetime experience and knowledge with not agreeing to the mass misconception f rising damp, hence avoiding any structural comment , unless I see a challenge, like now
Hope this help the op to do the best in his case- NOT TO f**k**g TANK THE WALLS
and use
@Bauwer products