Labels:sky | trade name OCR: What Vapor Migration? Vapor migrates into walls two ways: Second air leakage which occurs through construction defects and can either be inbound outbound air This rapid pr ocess Air Leakage: Rapid. Infiltration inbound Exfiltration, outbound VERTICAL SECTION Slide #20 ALA Continuing Education Stud Moisture Resistancs XPS Understand Steel pr45
