How to approach a contractor?
38′ by 39′ single storey with a walk out basement 20′ by 21′ garage. Living in PEI Canada(cold/very cold climate so says the maps)
I’m really wanting to build our new home with REMOTE wall ideas. One big problem is that my wife wants a very certain place to build and we have to go with that contractor. This contractor currently builds with 1″ of polyiso on the exterior and I understand that I need to increase that, I’m thinking 4″ xps, plus blown-in in the 2×6 stud cavitey. What are some ideas on how to approach the contractor with enough information ( but not too much) on why 1″ isn’t enough and that in cold climates more is better.
Any experience out there about cost, the savings of interior vapor barrier and house wrap(probably a few hundred vs couple thousand) vs Grace Bituthene, 2×4 vs 2×6.
On a side note is 4″ xps and 5.5″ of blown-in too close in ratio for the osb. Could you ever sell the idea in Canada of building 2×4 walls again??
Thanks in advance,
PS A million more questions after this, lol. (icf vs form foundation using exterior foam down to the footings) but we’ll talk about this later.
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