Hello, Home Energy readers. You may remember my story from a previous issue (“Adventures in Radon and Moisture Mitigation,” HE July/Aug ’14, p. 20). I’m the architect-turned-academic who introduced deadly radon ...
Most newer manufactured homes in the Pacific Northwest, as well as many older mobile homes, have a vapor retarder on the inside of the wall cavity--typically right behind the gypsum board. However, many older mobile homes, especially those built before the 1980s, were manufactured with a vapor retarder on the outside of the wall cavity--generally right behind the metal (or sometimes wood) siding. [continue reading]