Weatherization Test Drives Spray Sealant

November/December 2001
This article originally appeared in the November/December 2001 issue of Home Energy Magazine.
Click here to read more articles about Utility Programs
November 01, 2001
New aerosol spray technology can allow weatherization crews to seal even tiny duct leaks in places that are difficult to reach using conventional methods.
        Until recently, duct-sealing methods have not gotten enough attention from building scientists. Aerosol spray sealant offers a relatively new way to seal ducts—one that is becoming commercialized in some parts of the United States (see “Aerosol Spray Technology”).One advantage of this technology is that it reduces diagnostic and repair times, because the location of small leaks does not need to be visually identified, and wall, ceiling, and floor cavities do not need to be opened to gain access to the leaks. Aerosol spray can seal small or unreachable leaks that cannot be sealed in other ways.         Oak Ridge National Laboratory conducted a field test during the winter of 1999–2000 to determine the efficacy of advanced duct-sealing technology in housing weatherized by DOE’s Weatherization Assistance Program (WAP).We had three main goals.First,we wanted to know whether we could improve duct leakage reduction by using aerosolbased sealant. Second,we wanted to know how much time and labor might be saved by using this technology. Third,we wanted to know how the technology might be integrated with other work that weatherization crews ...

To read complete online articles, you need to sign up for an Online Subscription.

Once an order has been placed there is an automatic $10 processing fee that will be deducted with any cancellation.

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

Email Newsletter

Home Energy E-Newsletter

Sign up for our free monthly

Harness the power of

Get the Home Energy