Stopping duct quacks: Longevity of residential duct sealants

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Description

Duct leakage has been identified as a major source of energy loss in residential buildings. Most duct leakage occurs at the connections to registers, plenums or branches in the duct system. At each of these connections a method of sealing the duct system is required. Typical sealing methods include tapes or mastics applied around the joints in the system. Field examinations of duct systems have shown that these seals tend to fail over time periods ranging from days to years. We have used several test methods over the last few years to evaluate the longevity of duct sealants when subjected ... continued below

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Sherman, Max H.; Walker, Iain S. & Dickerhoff, Darryl J. August 1, 2000.

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Description

Duct leakage has been identified as a major source of energy loss in residential buildings. Most duct leakage occurs at the connections to registers, plenums or branches in the duct system. At each of these connections a method of sealing the duct system is required. Typical sealing methods include tapes or mastics applied around the joints in the system. Field examinations of duct systems have shown that these seals tend to fail over time periods ranging from days to years. We have used several test methods over the last few years to evaluate the longevity of duct sealants when subjected to temperatures and pressures representative of those found in the field. Traditional cloth duct tapes have been found to significantly under-perform other sealants and have been banned from receiving duct tightness credits in California's energy code (California Energy Commission 1998). Our accelerated testing apparatus has been redesigned since its first usage for improved performance. The methodology is currently under consideration by the American Society for Testing and Materials (ASTM) as a potential new test method. This report will summarize the set of measurements to date, review the status of the test apparatus and test method, and summarize the applications of these results to codes and standards.

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vp.; OS: Windows

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OSTI as DE00776574

Source

  • 2000 ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA (US), 08/20/2000--08/25/2000

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  • Report No.: LBNL--45423
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 776574
  • Archival Resource Key: ark:/67531/metadc716034

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 4, 2016, 2:28 p.m.

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Sherman, Max H.; Walker, Iain S. & Dickerhoff, Darryl J. Stopping duct quacks: Longevity of residential duct sealants, article, August 1, 2000; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc716034/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.