I have built a kitchen ext and at the same time continued the glass roof of the conservatory over the top (walls are brick cavity).
The wall between the conservatory is single skin brick which I now need to insulate on the kitchen side.
I will batten off and fix kingspan but have two questions.
as its an internal wall (conservatory unheated - cold) do I need a vapour barrier between the kingspan and plasterboard (taped kingspan enough)?
Can I do away with the battens altogether and up the kingspan by 25mm?
Many thanks
The wall between the conservatory is single skin brick which I now need to insulate on the kitchen side.
I will batten off and fix kingspan but have two questions.
as its an internal wall (conservatory unheated - cold) do I need a vapour barrier between the kingspan and plasterboard (taped kingspan enough)?
Can I do away with the battens altogether and up the kingspan by 25mm?
Many thanks