I’m in the middle of constructing a wood shop/building. I could not get the siding on this season so used a PPG deck stain with UV block on the exterior OSB. The interior is batt insulation and drywall. It is only heated as needed with a wood stove. During certain weather conditions – cold clear nights – there is frost on the exterior at the stud bays. What is happening and is it okay? Will this continue to happen to the siding on an unheated building?
Jon Beer discusses air-sealing and insulation strategies at FHB House New York.
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