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Old 02-27-13, 03:18 PM   #33
S-F
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In the long run outsulating is almost always cheaper due to the previously mentioned reasons. The problem with it is that you're using a ton of foam, which I personally find distasteful. Basically a good DER using no exterior foam involves a complete gut renovation and usually also something on the outside to deal with all the thermal bridging.The Larsen truss is pretty interesting though. It's a TON of work but you can still go all cellulose/no thermal bridging.
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