Solar Loading

October 3, 2016By Bob BerryBuilding thermography, Electrical Thermography, General, Training

Solar loading I have been asked quite a lot recently about the effect of sunshine in outdoor electrical inspections. Strong sunlight will cause solar loading, this means that the sun will heat the objects that it is shining on. While we don’t normally worry about colour in thermography, colour will strongly affect the amount of … Read More


September 26, 2016By Bob BerryGeneral

A safety issue has arisen during a thermographic survey of a building. A generator was being used to to provide power for heaters and a blower door, which caused a buildup of carbon monoxide. FYI, please see the safety alert

Does glass have a high, or low emissivity?

September 19, 2016By Bob BerryGeneral

  I have been asked the following by a student; “Does glass have a high or low emissivity? I always assumed that it was quite low as I can see my own reflection with my camera, but tables show it having a high value, Why?” Answer; Glass has a high emissivity. It is often quoted … Read More

Materials for increasing emissivity

September 16, 2016By Bob BerryGeneral, Training

The materials below are some that I would normally recommend for increasing the emissivity of materials. Scotch 33 Tape Consistent emissivity of 0.95 Glyptal Enamel Paint Electrically insulating paint Dye Penetrant Developer  This is easily applied and removed. It has a very high emissivity Paints, various paints can be used Some deodorants can be used, usually ones with alumina … Read More

Why is emissivity different with different cameras?

September 5, 2016By Bob BerryGeneral

  Why is emissivity different with different cameras? This is difficult for people to fully understand. To be honest, emissivity in general takes some time to begin to get a good grasp of, for me the process of getting a strong understanding took a few years, a lot of reading and some experimentation. Emissivity changes with temperature, … Read More

Can a Level 1 Thermographer Write a Report?

August 29, 2016By Bob BerryGeneral

Can a Level 1 Thermographer Write a Report?   This is a question that I have been recently asked.   “Can a Level 1 Thermographer write a report?”   Yes, strictly speaking thermography is an unregulated industry, and a Level 1 thermographer can write a report. So too can anybody else, from a florist, to a … Read More

Thermography of diesel tanks

August 7, 2016By Bob BerryGeneral

Question; We have 3 underground diesel storage tanks – at the depth of a normal service station. – At present don’t know if there is concrete slabs above them. They want us to show any leaks, build up or breakdown in the walls and also whether there is water on top of the diesel if possible. … Read More