Insulating an exterior wall from inside

[Marcusjfrancis]

I’d like to insulate an external wall from inside. I was thinking of fixing timbers to the wall and then using earthwool between the timbers then boarding over it.

Would I need to leave a gap between the brick wall and the insulation?

 

[Deleted member 174758]

Is your wall damp? Is your wall a cavity wall?

This is all a bit of a minefield, and if you get responses to this, there will probably be some disagreements...

 

[Marcusjfrancis]

It is a cavity wall and has no damp.

 

[Deleted member 174758]

With a cavity wall you can generally just fix insulated plasterboard (which has a PIR insulation backing) directly to the wall. This is similar to the way that solid walls are dealt with

 

[Notch7]

Earthwool is a poor choice for internal wall insulation.

PIR is better

 

[foxhole]

Used 62mm insulated plasterboard on my home (50mm is insulation).

 

[Marcusjfrancis]

Did you leave a gap between board and wall or just fix the board straight on to the brickwork?

 

[foxhole]

Did you leave a gap between board and wall or just fix the board straight on to the brickwork?

Direct to blockwork with fixing foam .Added a couple of mechanical fixings as well .