Damp Proofing

Damp from gap under skirting

Anonymous user 16/03/2024 - 2.49 PM

We have just moved in to a 60s bungalow that was built on a slab, on a slight hill. The floor on the ‘downhill’ end of the bungalow has sunk where (we believe) the rubble/hardcore of the slab was not properly compacted. This has created a 2/3cm gap under the skirting. We are planning on having the floor raised by having polyurethane foam injected at some point this year. But my question is regarding the damp draft coming up through the gap. We have a huge problem with mould and condensation despite using dehumidifiers, vents and opening windows. I’ve tried temporarily plugging the gap with rope caulk and this morning I realised that the putty is covered in water droplets, as if the water is leeching through. We know that the water cylinder (on the “uphill” side of the house), has been leaking for at least a couple of years, so possibly water has gotten under the house and can’t get out. My questions are: 1. Do you think that raising the floor and sealing the gap will fix this problem? And 2. Can anyone suggest a temporary fix? Huge thanks in advance. Kate