A version of this article appears in the July/August 2007 issue of Home Energy Magazine.
July 01, 2007
Fiberglass or “Filterglass”? I liked the article about your energy-efficient home in a recent Home Energy (“Design, Construction, and Performance in Ohio,” Jan/Feb ’07, p. 36). Sounds like a well-thought-out home. The only comment I have is regarding your use of fiberglass in the walls. I was an energy auditor for a Vermont weatherization program for six years and have done hundreds of infrared scans on fiberglass-insulated homes. Fiberglass, or “filterglass,” as I like to call it, just does not live up to its billing unless it is installed in an airtight cavity. Now your walls sound pretty airtight, but I think you would have been much better off using spray-applied cellulose in the walls (the 2-inch exterior foam board is excellent, by the way). I think we have to send a message to the fiberglass manufacturers and to the builders still using it that their fiberglass batts are an inferior product. I built my home with fiberglass insulation before I learned these things and have since tightened my 2,000 ft2 home to 600 CFM50. However, on a cold day, all of my outlets on exterior walls are ...
To read complete online articles, you need to sign up for an Online Subscription.
The Home Energy Online articles are for personal use only and may not be printed for distribution. For permission to reprint, please send an e-mail to firstname.lastname@example.org.