Q: Hello team! When insulating a loft do you put the insulation right to the very edges of the loft front and back or do you leave a gap. the reason I am asking is that my front bedroom ceiling has mould/damp patches just in the left hand corner and the right hand corner i have checked the gutters etc but cannot no see anything the only thing i can think of is that there is no loft insulation across that edge. any ideas please. Thanks, David

A: Loft insulation shouldn't be a cause of damp, if anything it's probably been removed from that area to try and allow it to breathe a bit better. If you've checked the obvious guttering issues then your next step is probably to get a roof or damp specialist in to look at the problem, as it may be a hole in your roof. Persistent damp is often a sign of some damage or flaw in the structure of the building and if left untreated it can cause further damage and problems to the property.