Exposed beams and deck with rigid insulation above
I’m going to have a cathedral ceiling with 2 x 6 tongue and groove decking that is exposed from below, so all the insulation must be above. We are going to have a metal roof. The pitch is only 2 and 1/2 + 12 so there will be an ice and water shield. Unless you have another recommendation. We need to meet r38 but need to minimize the thickness as much as possible.
The climate is Pensacola Florida which is hot and humid most of the time.
Whatwould you recommend?
The rafters will be 4 by 8 space at about 4 feet on Center and they will come out and become exposed so that may add an additional layer of complication to the roof wall interface detail. Please advise.
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