Adding Rockwool Behind Foilback Plasterboard Wall

blackeyes · 2010-02-16 10:15:58

Hi All, I seem to only have foilbacked plasterboard on the back of an attic room walls in our new house. Can I add a layer of kingspan or rockwool on the foil back side or would this cause some issue? I assume the foil back is for vapour resistance or something like that. Any info would be super, BE.

16-02-2010 11:15AM

#1

blackeyes

Registered Users, Registered Users 2 Posts: 65 ✭✭

Join Date: June 2006

Posts: 35

Hi All,
I seem to only have foilbacked plasterboard on the back of an attic room walls in our new house. Can I add a layer of kingspan or rockwool on the foil back side or would this cause some issue? I assume the foil back is for vapour resistance or something like that.

Any info would be super,

BE.

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#2 17-02-2010 07:48PM

ccsolar

Registered Users, Registered Users 2 Posts: 423 ✭✭

Join Date: December 2009

Posts: 411

blackeyes wrote: »

Hi All,
I seem to only have foilbacked plasterboard on the back of an attic room walls in our new house. Can I add a layer of kingspan or rockwool on the foil back side or would this cause some issue? I assume the foil back is for vapour resistance or something like that.

Any info would be super,

BE.

Blackeyes.
There is no problem with insulating the attic walls, best using a sheet type insulation as the rockwool is messy, seal the joints after with silver tape.

CC

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