Double wall or other option?
We’re going to build a house in zone 7. Northwest Washington state, up in the mountains. I’m trying to figure out what’s the best wall/insulation method on a modest budget (I know that doesn’t tell you much, I’ve got to do the whole 2 bed, 2 bath house for about 150,000). Is double wall with blown fiber glass insulation worth the extra cost? And can it be done on an already laid concrete block foundation? Or is there another equally warm option that I just don’t know about? Thanks for any input – I can only check email once a week, so bear with me.
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