I noticed the same pattern in two of the three different pitches of the roof, the back pitch just above water tank and along the side above the loft hatch. In some places there are just damp patches next to the timbers but in other places there seem to be bands of damp that stretch between...
Hi all,
Property is 2003 semi-D that we purchased a couple of years ago. The first winter we were in I noticed condensation on the underside of the membrane in the loft. We added insulation, increased ventilation, and fitted all water tanks with lids and lagging jackets. Condensation has gone...