Sorry to repost this, but we are overwhelmed.
Just got some prelims back and he’s want to know about insulation details so they can be noted.
Zone 3,12/12 pitch standing seam roof with 5/8 plywood an clips,2 story with a option I bonus room on the third,it has a half story truss,24 on center,we were thinking about spray foamin the inside roof line but know if that the best option.
Walls are 2×6 on 24 centers,we planed on putting 1 inch exterior foam board under hardie board and over tyvek and osb but don’t know if that’s te best option.
I tend to over think things butni like doing things right,in this case I just don’t want to spend excess money on things that’s would take forever to pay back or cause my home to rot.
We will finish the third floor so it will have sheetrock.
1.do we need to have the roof vent(ridge vent),if so what’s the best option(site built baffles going from soffit to ridge)?
2.what do we insulate the interior roof line with,spray foam or batts and then sheetrock?
3.do we still use 1 inch exterior foam flat down over plywood or membrane?
4.is foam exterior board 3/4 or 1 inch needed under hardie board?will we benifit from it in zone 3?
5.would we benifit from a rain screen with or without foam?
6.are batts the best option for exterior walls or batts and the foam combo?
Man my head is spinning?
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