There's always one who complains of damp..."We're going mouldy..." It really should not be possible for water to enter a purpose built block of flats built in the 1960's, even though they do look as though they were built from an East German design! ( although of course sometimes it does, but not in this case). The occupiers complained of mould growth, but it really was not worth the telephone call, because all it is, is a little mould caused by condensation forming on a couple of walls, a bit of skirting board and on some of the window frames, even though they are double glazed. Condensation can be a problem, but all you have to remember is to open windows, particularly bedroom windows at night,however abhorrent that may sound to reduce condensation. It will reduce the problem and in any event it will be better for your health. Thank you, Doctor Beard...