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cavity wall insulation - good idea ?

bobula · 2012-04-02 15:49:03

just bought a 1950s Brick built - 2 layers with an air gap between. - no wood work in the cavity to sweat. its been suggested i cavity wall insulate with blown insulation im sceptical due to the gap being there to stop damp bridging and to let the house walls breathe - sticking the insulation in there will create a bridge…

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moneywasternomore! Posts: 335 Forumite

1 May 2012 at 10:38AM

I suspect cavities were used as 50-80 years ago, blown insulation, Kingspan etc didn't exist! The theory was that the heat from the house warmed the air layer and that insulated against the cold from outside. That's the same as saying you don't need fleece or Goretex to keep you warm as your hairs will stand on end and that creates a warming layer of air over your skin....

Only my opinion, not fact-based at all! (CWI booked for 22 May!)

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cavity wall insulation - good idea ?

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