Could really do with some advise.
Currently live in 3 bed semi detached house.
We have got black marks (damp/mould) on the outer walls of our two upstair bedroom walls at various heights. This is the gable wall. Yet no signs of damp downstairs...
Been given, and looked in to a few options, such as;
putting ventilation in to the soffits
putting air bricks in both the bedroom (cavity) walls
putting vent tiles in the roof.
to date i have:
taken out the built in wardrobes in both bedrooms and put up free standing,
bought a de-humidifier that i keep in the upstairs hallway outside the 2nr bedrooms,
and have also insulated the loft.
Can anyone advise of the best method to reduce this constant return of damp.
would be much appreciated.