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Finding out where damp is coming from….
In the ongoing “journey” of trying to work out where the damp is coming from, I decided to try and lift some of the patio myself today!
The slabs are coming up super easily, and the “grout” (not sure if that’s the word when it’s a patio) literally just seems to be sand/come straight off. Under the patio it’s then looking like this, and the pavers are all soaked through.
My guess is this explains the problems and I’ll continue on the mission tomorrow!!
Silly question time. What’s the best way to remove the concrete below if I do it myself?
So grateful as always for this group
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4 Replies
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I am planning to have my house repointed as very often that causes the damp, I will remove the mortar and then have Bricklayer to point it for me. Apparently if you repoint with lime is better than cement. Maybe something to look into too. But definitely it should be around 10cm of loose shingle around the house not patio slabs layed all the way to the property. Good luck. Depending on how hard the concrete is SDS drill is good but very hard work.
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Looks like a bridged damp proof course and inadequate drainage for rain water.
Also did you get a survey and what did it say?
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I’m not 100% sure it has a dpc as built in 1900, but regardless seems right to be lowering the outside level.
The survey was well before all of the heavy rain and this part in particular wasn’t visible. It mentioned some damp in line with what you’d expect for a Victorian property. They mentioned replacing gutters, lowering outside levels and redirecting the rainwater as well as re-rendering – but I know everyone seems to suggest not to do this but instead use lime plaster?
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So sandstone allows water to move through it. It’s breathable and very beautiful. Have you had cameras down your drainage and sewage pipes? I think I might start there. We don’t have a damp course and heights outside vary. We don’t have any damp though. I always think having any hard surface (whatever it is) in direct contact with the walls is never good.
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