Thermal breakage potential of sealed glazing units

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AuthorSearch for:
Journal titleSpecification Associate
Pages2533; # of pages: 9
Subjectthermal stresses; fixed windows; glazings; thermal resistance; heating equipment; sealants; Heat performance; contrainte thermique; fenetre fixe; vitrage; resistance a la chaleur; installation de chauffage; mastic
AbstractIn cold weather, sealed double-glazing units experience thermal stresses that can lead to breakage of the inner pane. The potential for thermal breakage is related to the difference between the mean temperature and the edge temperature of the inner pane. Breakage potential is affected by features of the sealed unit itself, such as the thermal resistance of the glazed air space and of the edge spacer. In addition, the breakage potential is affected by the thermal characteristic of the window member in which the sealed unit is glazed, by the thermal characteristics of the glazing method, and by the configuration of the heating terminal unit. The effects of the above factors on the cold- weather breakage potential of sealed units were investigated in laboratory tests, and are herein reported.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number12081
NPARC number20374879
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Record identifier0b16ef62-d9e3-4d21-af03-d35d6c74a2c9
Record created2012-07-23
Record modified2016-05-09
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