Hello all, not a newbe just not much of a poster.
I am about to put polystyrene (XPS) on the out side of a house then vinly. Most guys around here (Northern Maine) also wrap the house. Is wraping necessary if you tape the joints? Their is Kraft-Faced FG in the interior.
as a side question is there any book that can answer my vapor barrier, insulation questions that is in plain and understandable english?
Replies
In your situation, disregarding its use as a secondary rain shield, the housewrap is "belt and suspenders" if you've got the XPS tightly sealed. Probably adequate without the wrap, but it's amazing how much air can infiltrate through apparently airtight structures.
The Building Science Corp books, available in the Books & Videos section above.
Building in a Cold Climate would probably covern N Maine.
Joe H