Not necessarily a problem with humidity. The air bricks were blocked, two drains on the outside of rooms walls were blocked causing water to sit and then soak into the walls. Simply repaired the drains and the air bricks and aired it out to dry.
Thanks @JobAndKnock I’ll keep all of that in mind. Where the ventilation was blocked the damps crept up the sleepers and weakened the mortar so it’s wobbly, I’ll replace those bits and go from there
Hi All
I’ve bought a c1910 detached house knowing it had damp issues in the subfloor, the damps been there for a while! . I’ve fixed the issues causing the damp, cleared the vents and in the procsss of drying out the walls and concrete base. I will need to address the sleeper walls and the...