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Proceedings Paper

Thermal performance of windows by means of thermography and heat-flux meters
Author(s): Timo T. Kauppinen
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Paper Abstract

The replacement of windows is the most common renovation measure in Finland. There are also problems in new buildings especially with new thin light metal-framed windows, even though the U-value of the pane would be acceptable. The minor defects in the installation may cause IAQ-problems - because of seam leaks and thermal bridges. There is no general procedure for condition survey of windows based on measurements. In this paper a procedure for testing windows in in-situ conditions is presented based on case studies. Thermal performance of windows can be measured using thermography and supporting methods, like heat-flux measurements and air leak tests. Even though the absolute results may include interfering factors, we can compare the windows with each other (depending on the conditions) and make decisions on the quality of the installation work and the thermal performance of windows.

Paper Details

Date Published: 15 March 2002
PDF: 11 pages
Proc. SPIE 4710, Thermosense XXIV, (15 March 2002); doi: 10.1117/12.459574
Show Author Affiliations
Timo T. Kauppinen, VTT Building and Transport (Finland)

Published in SPIE Proceedings Vol. 4710:
Thermosense XXIV
Xavier P. Maldague; Andres E. Rozlosnik, Editor(s)

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