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ectoplasmosis
We're starting to get the ball rolling with external wall insulation considerations, getting recommendations for fitters etc, although we likely can't afford to get it done until next year it seems prudent to start to think and plan this year.
However, I'm in a bit of a rabbit hole of whether we should also be considering cavity wall insulation before...
The reasons I seem to be reading are a little confusing to me but sound like cavity wall (if left unfilled) can contribute to colder feeling due to cold outside air making its way into the cavity and would therefore make the EWI feel (or maybe be) less effective. I guess it would be like a warm jacket you put on but the wind going up the sleeves or something...
So, my question is. Does anyone have experience or opinon on whether it would be worth cavity plus EWI?
In the medium term cavity would at least make our house more comfortable, but long term is it just throwing money away if we will at some point look at EWI?