I've currently got a floor to ceiling window which I'm removing, getting the bottom half of the opening bricked up then a new, smaller, window put back in.
The new cavity wall will be approximately 800 x 2000 and I'm wondering what the best form of insulation would be? It seems my choices are either celotex or fibreglass/rockwool. I've no experience with either so have no idea which would be best.
Thanks guys.
The new cavity wall will be approximately 800 x 2000 and I'm wondering what the best form of insulation would be? It seems my choices are either celotex or fibreglass/rockwool. I've no experience with either so have no idea which would be best.
Thanks guys.