Recommended Damp Proof Course provider

Sun 7 Oct 2018, 22:39

Many thanks all for your helpful comments.

Mon 1 Oct 2018, 08:52

I agree with other posters. To add dampness inside can be caused by a) inadequate ventilation and/or heating. These houses can absorb a lot of moisture. A dehumidifier might help. b) Soil/rubble build up on outside walls. Make sure the ground level is well below floor level. c) Timber suspended floors must be ventilated. Make sure any air bricks are unblocked. d) Rain water must be taken care of. Make sure guttering is in good condition and unblocked. Many houses were built without rain water soak aways. You should have one well away from the house for each downpipe.

Sun 30 Sep 2018, 22:51

If the damp is coming through the floor you may be able to tank out internally with a flooring garage Mastic Asphalt floor - but would have to dig out - an expensive but traditional method .

Sun 30 Sep 2018, 22:06

Will - here's the 15-second version: The first thing to check is whether your problem is rising damp or damp penetrating through the stone walls. Rising damp is more challenging to deal with in traditional stone-built houses here, if for no other reason than the walls often don't have very deep footings. If it's penetrating damp, then repointing the outside joints with lime mortar - not cement mortar - will help to reduce the problem. The other thing is to make sure that the walls can breathe - and that may involve taking off any modern pink plaster inside, and replacing it with lime plaster. Lots of damp problems in stone-built houses here are caused by the use of materials that effectively seal up the wall and stop it breathing. Water that gets in has to get out, and if it can't, that's when damp problems appear. Get in touch through the website if you would like the full version .... !

Sun 30 Sep 2018, 21:49

Will,

Injected damp resistant membranes are not very effective in traditional stone, rubble filled walls. They are more suited to brick cavity or solid walls. If the issue is internal, the correct application of a slurry based tanking system is quite effective if properly applied.

Sun 30 Sep 2018, 20:46

Can anyone recommend a company they've used? We're looking to inject into our existing Cotswold stone property.

Many thanks.