The house is being built with concrete blocks - with a cavity between the inner and outer wall.
The cavity needs insulation - one choice I have to soon make is what type and even what brand.
Now - a week ago I wouldn't have a clue about this - but my builder mentioned that other house builders localy were starting to use full cavity insulation - blown in through holes drilled in the walls after the house has been built. This is instead of the "traditional" insulation boards attached to the inner wall - leaving an air gap (partial fill). I found a few sites recommending both - but eventually decided to sticke with what you can see. Kingspan - (they may be biased) - did a few "white papers" on full cavity insulation - and they highlighted the problems with it when it is not correctly applied. Also - apparently the NHBC don't allow it in new houses in Scotland because of the extra rain and wind which increases the risk of moisture entering the insulation and making it through to the inner wall when there is no cavity. If it's not good enough for the Scottish climate - then I don't think it will go too well here in the wet and windy West of Ireland! (It's not always wet and windy .)
See more here http://www.fmb.org.uk/publications/masterbuilder/november03/30.pdf
and here Kingspan White Paper
I will probably be using Kingspan or possibly Hytherm
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