Looked at a job the other week for a friend who is a builder and the jobs been giving him headaches for about six months. In one bedroom on the top floor in both corners it's damp from floor to ceiling one corner is external and the other attached to a neighbour. First day I called she wasn't in so could only look from the outside and noticed next door has their window opened with a plastic bag stuffed in the gap so I thought hmm they have a problem and it must need venting, so I got in the next day and the room in each corner was a little damp and mould so it must be condensation, she had a humidifier with quite a lot of water in it so I assumed damp then she shown me a pic on her phone and it was saturated so then I thought it must be getting in somewhere. My mate has checked the roof, repointed the gable, very confusing. I checked the window it was sound so I got into the loft to check the roof and that was sound but one thing I did notice was the lack of insulation in the loft and no felt on the roof. My findings were the lack of insulation, I sounded like a bullshitter saying this could be the problem but it makes so much sense so we will see once it's been insulated. This house has been modernised around 2/3 years ago so something else has happened and I think the reskim has also added to the problem, I'm thinking the gypsum plaster has added to the problem coz the original finish was lime and could breath so why don't BG sell a similar finish to what was used years ago @BritishGypsum. So does it sound mad that a lack of loft insulation could cause the problem and could be part of the missing magic puzzle we have been searching for? Lol
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