Hello
I have a damp loft , 97% humidity to be exact and a gable end I could put a vent in. Why so damp ? well my house of 1950's vintage had cavity wall insulation installed along with bleeding expanding closed cell foam insulation in the loft. Hence I have condensation problems in the house. The loft seems to be hermetically sealed so needs some ventilation. Access to the outside of the house would require scaffolding so I have been looking at one of these.
https://www.screwfix.com/p/manrose-inte ... _container
The question is will the seal on this be ok to stop water getting at the wall insulation?
Or is there another way better way ?
Thanks for any advice
