Suitability For Cavity Wall Insulation

[David1983]

Good morning! I'm wondering about getting cavity wall insulation and I don't know if my house will be suitable so if anyone can point me in the right direction....

The house was built around 1975 by my local council using a pre-fab design. Sometime in the 1980s the council built brick walls around the pre-fab shell to combat damp problems with the pre-fab and everything was sorted - so i should have a cavity between the pre-fab exterior wall and the brick wall interior (I think that's what I saw when I was putting my outdoor tap on!). Would it be possible to fill this gap with insulation as I've never heard of a two-walled house before! Also, as I'm in Scotland and everything in sight in pebble-dashed, how would they get the insulation in - would the drill holes in the render or go in by the side of the windows where it is un-rendered?

Thank you in advance, David

 

[Alastairreid]

you sure its not insulated already David?

normally when the la is upgrading a prefab they would insulate as well.

 

[David1983]

Hi Alistair, I think their may be some insulation as when I drilled through to install the outdoor tap it appeared that their was some polystyrene attached to the inner face of the outer brick wall. I don't know how efficient this is alone and don't know if this is cavity wall insulation - I thought the cavity would be completely filled?

 

[stuart45]

Before any firm installs CWI they will send a surveyor to determine whether or not the wall is suitable. Sometimes they will reuse to do it if the cavity is too small, or too much debris in it.