thanks for your comments. Aprreciated. I'm no expert myself ... but wouldnt the foil backed plasterboard act as a vapour barrier to prevent such condensation from forming?
At the moment, the 50mm cellotex is inset into the rafters by 100mm. (for the blanket). If i just fix the plasterboard...
Background: last year, we converted our Bungalow into a 2 storey house.
The Bungalow had a attic so the Roof rafters had 50mm cellotex which I was able to salvage.
When we converted to a house, the loft space was not converted into an attic. Put simply, British Gas laid 120m2 of yellow...