Best method for insulating post-framed buildings with metal inside and outside finishes?
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| Posted in Energy Efficiency and Durability on
I’ve seen installations with batt insulation run vertical between horizontal purlins on both sides of the post frame with a vapor barrier to the inside finish. It would seem to me that one could have a host of moisture build-up in this cavity since it is not air sealed very well.
Are there alternate recommended practices for zone 5A?
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Replies
William,
Multiple layers of rigid foam would perform better than batts, of course. But first you need a smooth surface (OSB or plywood) on which you can attach the foam. That raises the cost of the post-framed building.