DT117/4 Sustainable Build & Design - Class Presentations

1. ThermalImaging

2. A Thermal Imaging Camera makes an image from thousands of surface temperature measurements The Camera detects ‘thermal’ radiation in the infrared range of the electromagnetic spectrum The Camera coverts this longer wavelength ‘thermal’ radiation into visual images How it Works 2

3. Identifies the areas of air leakage/heat loss Shows thermal insulation defects Identifies Cold bridges Condensation Identification Electrical Faults Leak Detection Quality Control during Building Post Construction Survey Pre – Purchasing Survey Can improve previous designs Applications in Construction 3

4. An instantaneous picture of heat loss allowing a quick assessment of defects Quick inspection – Rapid Scanning of Large areas Non Invasive Results are easily shown visually Can be used to show efficacy of heating and cooling installations Improve design detailing Benefits of Thermal Imaging 4

5. Medical Science – Tumour Detection Fire Fighting Swine Flu/Disease Detection Bruise Detection in Apples & Fruits Equine Science Other Uses 5

6. Only Detects Surface Temperatures Differences Does not quantify heat loss Better if it has a controlled environment Cannot detect sub surface problems Cannot detect moisture levels, just a anomaly Thermal Imaging Camera Costs Limitations 6

7. Recommend a Air Tightness Test in conjunction with a Thermal Image Survey Best to carry it out in the Morning – No sunshine on façade for 4 hours No Rain/Mild Wind Only 10 Degrees Internal/External Temperature Difference Ideally have the heating on for 2 hours prior to Survey Access to all Rooms Domestic Survey 7

8. Examples – Leak Detection 8

9. Air Loss/Infiltration 9

10. Missing Insulation 10

11. Single Problem e.g. Leak - €200 First Hour, €75 per hour after Thermal Imaging report & photographs with description of findings - €300 Air Tightness Test with & Thermal Image Survey & Report - €450 Figures Based on a 3 Bed Semi-Detached House in Dublin How Much Does a Survey Cost? 11

12. Any Questions Thank You 12

13. BRECSU 2000. Post construction testing - a professionals guide to testing housing for energy efficiency. Watford, UK: Building Research Energy Conservation Support Unit. BSRIA 2002. Thermal imaging of building fabric: a best practice guide for continuous insulation. Berks, UK: The Building Services Research and Information Association. SWENNY, B. Available: http://www.bscs.ie/pdf/BSCS_Sample_Report.pdf [Accessed 13-March-2010]. WILLIAMS, T. 2009. Thermal Imaging Cameras, New York, Taylor & Francis. References 13