Use of cooling down thermography in locating below-surface defects of building facades

Timo T. Kauppinen; Christiane Maierhofer; Herbert Wiggenhauser; Detlef Arndt

doi:10.1117/12.381567

30 March 2000 Use of cooling down thermography in locating below-surface defects of building facades

Timo T. Kauppinen, Christiane Maierhofer, Herbert Wiggenhauser, Detlef Arndt

Proceedings Volume 4020, Thermosense XXII; (2000) https://doi.org/10.1117/12.381567
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

By using quantitative thermal scanning of the surface of various building structures, defects and thermal bridges can be found and recognized. In controlled conditions, it is also possible to classify the type of defects applying non- stationary heat-transfer models. By heating the structure with an energy pulse and monitoring the surface temperature changes, the structural details and defects in the near- surface region can be clearly seen in the thermal images, based on the different thermal parameters of these structures. In this paper, experimental results of laboratory studies of a test wall (thermal cabin) are presented. Using relatively low energy pulses and short heating-up times (15 min), different surface temperatures and different rates of cooling visualize the structural details of the cabin. The paper is partially based on the presentation at Eurosense, June 1999.

Citation Download Citation

Timo T. Kauppinen, Christiane Maierhofer, Herbert Wiggenhauser, and Detlef Arndt "Use of cooling down thermography in locating below-surface defects of building facades", Proc. SPIE 4020, Thermosense XXII, (30 March 2000); https://doi.org/10.1117/12.381567

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