Part of my 1800s house a flat roof. Whilst the loft is insulated, the flat roof isn't, and the bedroom quickly gets cold.
The roof itself is in good condition. I've only had one quote so far and I want to check what the builder said was correct. Essentially to leave the roof as is, build a new structure on top, insulate new structure with Kingspan and fibreglass on top. There was something that went between the insulation and fibreglass but can't recall what.
Is that correct? With having such an old house I'm always conscious of the fact that it needs to breathe to prevent condensation.
The roof itself is in good condition. I've only had one quote so far and I want to check what the builder said was correct. Essentially to leave the roof as is, build a new structure on top, insulate new structure with Kingspan and fibreglass on top. There was something that went between the insulation and fibreglass but can't recall what.
Is that correct? With having such an old house I'm always conscious of the fact that it needs to breathe to prevent condensation.