Spray foam insulation can absorb or emit infrared rays depending on their surroundings. This is why it is important for an inspector to know how to use a thermal camera properly.
Infrared cameras help identify areas of heat loss or moisture intrusion in a home or building. This allows for a faster, more accurate inspection and repair. In addition to revealing air leaks in the walls, ceilings, and attic, it also shows areas of uneven insulation or missing insulation. It can be used in conjunction with a blower door test to exaggerate air leaks and make them easier to find.
Detecting Moisture Intrusion
As with any other non-destructive testing method, the results of IR scanning are not a substitute for the results of direct observation and/or laboratory tests. However, IR can be very useful in detecting conditions that may not be apparent with visual observation alone, such as a plumbing leak or foundation problem. This is because IR can detect a wet area by the Evaporative Cooling effect that water causes. IR images will show wet areas as cooler in color, and should then be verified with a moisture meter to determine the extent of the damage.
Electrical Issues
Normally, current flowing through an electrical system creates heat. When there is an abnormal increase in resistance or a short circuit, the result is often a surge of heat within different electrical components. Using an infrared camera, a qualified inspector can detect this heat and note potential problems before they become full-blown fire hazards or equipment failures.
Georgia Insulation
2092 Crow Rd, Gainesville, GA 30501
(770)758-4459
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