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We just purchased a 12X12 shed/building to use as a home office. Initial plan was to drywall in a ceiling with insulation. My wife now would like to keep the vaulted look and has directed me to figure this out. Building has a metal roof on top of a polyurethane product screwed into 2x4 purlins. Roof appears to have a ridge vent/cap on top with gable vents on both ends - no suffit. Building will have AC and heat. Can we insulate directly against the polyurethane and is it possible to close off the gable vents without issues?
4/19/2020
Or copy this URL: https://www.metalroofing.com/spirit/comment/24890/find/May I ask where you are located? Climate has a lot to do with the right assembly. Generally though I'd say you need a vapor barrier, which sounds difficult and/or ventilation. Feel free to call me this coming week at 1-800-543-8938 ext 201 and we can talk this through.
Isaiah Industries, Inc.
4/19/2020
Or copy this URL: https://www.metalroofing.com/spirit/comment/24891/find/Thanks for your response. We are located in northern Kentucky with humid summers and moderately cold winters. I'll give you a call during the week. Thanks again!
4/19/2020
Or copy this URL: https://www.metalroofing.com/spirit/comment/24892/find/Yes, let's talk. You definitely need some way of ensuring that warm moist air originating inside the structure does not reach the cold back side of the metal roof.
Isaiah Industries, Inc.
4/19/2020
Or copy this URL: https://www.metalroofing.com/spirit/comment/24893/find/