Detecting thermal bridges

Thermographic testing of precast structures

Opener Photo: Thermografie Beenen
Opener
Photo: Thermografie Beenen
Fig. 1 The winter season with its prolonged hours of darkness provides optimal conditions for the thermographic survey of buildings. Photo: Stadtwerke Bochum
Fig. 1 The winter season with its prolonged hours of darkness provides optimal conditions for the thermographic survey of buildings.
Photo: Stadtwerke Bochum
Fig. 2 Building thermography identifies problem areas in buildings and their envelopes, such as poorly insulated lintels. Photo: InfraTec
Fig. 2 Building thermography identifies problem areas in buildings and their envelopes, such as poorly insulated lintels.
Photo: InfraTec
Fig. 3 Floors. Photo: THECH
Fig. 3 Floors.
Photo: THECH
Fig. 4 Windows and doors and their joints. Photo: FLIR Systems
Fig. 4 Windows and doors and their joints.
Photo: FLIR Systems
Fig. 5 Balcony slabs that are not thermally broken. Photo: Schöck Bauteile GmbH
Fig. 5 Balcony slabs that are not thermally broken.
Photo: Schöck Bauteile GmbH
Fig. 6 Typical weak spots in precast buildings include element joints, staircases, base and ceiling areas etc. Photo: InfraTec
Fig. 6 Typical weak spots in precast buildings include element joints, staircases, base and ceiling areas etc.
Photo: InfraTec
Fig. 7 Before/after images impressively demonstrate the success of subsequently add-ed thermal insulation. Photo: Thermografie Beenen
Fig. 7 Before/after images impressively demonstrate the success of subsequently add-ed thermal insulation.
Photo: Thermografie Beenen
Fig. 8 Thermographic testing does not just reveal thermal bridges – it is also perfectly suitable for equipment maintenance, quality control or the monitoring of production processes. Photo: Testo
Fig. 8 Thermographic testing does not just reveal thermal bridges – it is also perfectly suitable for equipment maintenance, quality control or the monitoring of production processes.
Photo: Testo
Fig. 9 Thermal imaging cameras are available in many designs, for a wide array of applications and in all price ranges. Photo: InfraTec, Flir, Testo, Testboy
Fig. 9 Thermal imaging cameras are available in many de
signs, for a wide array of applications and in all price ranges.
Photo: InfraTec, Flir, Testo, Testboy
Fig. 10 Comparison of different detector resolutions: 120 x 160 pixels of an entry-level camera vs 640 x 480 pixels of a professional camera (full-scale). Photo: InfraTec
Fig. 10 Comparison of different detector resolutions: 120 x 160 pixels of an entry-level camera vs 640 x 480 pixels of a professional camera (full-scale).
Photo: InfraTec
Fig. 11 Thermal images must be analyzed using special software and assessed and interpreted by experts in the field. Photo: PCE
Fig. 11 Thermal images must be analyzed using special software and assessed and interpreted by experts in the field.
Photo: PCE
Fig. 12 It is crucial to provide comprehensive, easy-to-understand and plausible thermal imaging reports. Photo: Testo
Fig. 12 It is crucial to provide comprehensive, easy-to-understand and plausible
thermal imaging reports.
Photo: Testo
Foto für Tabelle, siehe Anhang
Foto für Tabelle, siehe Anhang
Foto für Tabelle, siehe Anhang

 Thermal imaging cameras detect thermal bridges on poorly insulated facades but their use requires expert knowledge. This article outlines important criteria to be considered when selecting and using such equipment, including checklists, hands-on tips and tricks, and a list of manufacturers.

Thermography is booming, particularly in the construction sector. This is due not only to declining prices of cameras but also to the extremely wide range of applications of this equipment. Such cameras can be used to detect thermal bridges or spots with possible mold formation just as quickly as design and workmanship defects – in a non-contact, non-destructive process that does not interfere with construction progress or building use. Thermal imaging cameras (which are also referred to as infrared, IR or thermography cameras) are used for building surveys determining their energy efficiency...

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BFT 12/2011

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BFT 12/2011

Ressort:  Spin-Offs | Umfeld
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