Mark P Posted February 16, 2009 Report Posted February 16, 2009 What is the definitive informational source for attic ventilation? Is there an ASTM standard, or another organization that has published standards?
Robert Jones Posted February 16, 2009 Report Posted February 16, 2009 Mark, I have always referred to IRC 806.2, UBC 1505.3. Simply states that 1/150 of vented area or 1/300 if 50-80% of venting near the top or vapor retarder. V/R
Chris Bernhardt Posted February 16, 2009 Report Posted February 16, 2009 What is the definitive informational source for attic ventilation? Is there an ASTM standard, or another organization that has published standards? Google William B. Rose If my office was on fire, his book "Water In Buildings, An Architect's Guide to Moisture And Mold" is the first one I would save out of my library. Other articles of his on the web: Issues Related to Venting of Attics and Cathedral Ceilings Moisture Control in Crawlspaces Early History of Attic Ventilation The Moisture Balance: Fundamentals Chris, Oregon
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