My mother-in-law recently moved house. Her old house had cavity wall insulation, which she had fitted about 5 years ago as part of one of these government energy saving schemes. As part of the move, she had to have one of those EPC reports which correctly stated that insulation was retro-fitted into the cavity. As part of the move, she had to fill in a questionair which asked all the usual things about who owned what fence etc. One of the questions was about cavity wall insualtion. It asked when it was fitted and why. Are there any other reasons other than energy saving to fit cavity wall insulation? Maybe I was reading too much into the question but I got the impression that it was viewed as a negative thing. Alan

Expanding foam cavity fill can be added to cavities with rusting cavity ties to hold the two skins together. Mike

In article , Andrew writes Had ours done with foam about 30 years ago - no damp.

Is cavity wall insulation frowned upon?

Dec 30, 2017 22 Replies

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Andrew 8 years ago

That's because they saved money by not bothering with the adhesive that the applicator nozzle is supposed to spray over the balls as they are blown into the cavity.

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bert 8 years ago

Had ours done with foam about 30 years ago - no damp.

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Andrew Gabriel 8 years ago

Mostly filled cavities are all fine. Mine is blown fibre (strangly, done at build time, and injected from the inside), and my parents had blown fibre done 5-10 years ago in their 1950's house without any problems.

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