I did consider this but the width of the damage is probably about 4 or 5 ft so I was a bit concerned that it would affect the structural integrity somewhere over time, I am probably over thinking it but better to be safe than sorry I suppose.
Thank you JohnD. Really appreciate you all taking time to reply and I think I am pretty clear about what the best plan of action is now. I should be able to get the the joists with a bit of dpc and I suppose if I cant get a tight wrap then it wont hurt having a go at it.
Thanks cdbe. I did wonder if adhesion would be a problem as the blocks are still quite crumbly if you get what I mean. Found out from the neighbour that the previous owner did this so he could fit his car in the garage!
Hello all. At the weekend I stripped the garage of a load of units the previous owner left behind. Behind some of them, I found a load of the thermalite type blocks had been hacked/ chipped away, this wall backs directly onto the kitchen and the damage is pretty extensive. Could this be fixed...