Infrared
imaging provides important information relating to otherwise inaccessible areas of a residential or commercial building. The
infrared camera detects extremely small but crucial differences in surface temperature from one area of a house to another.
These temperature variations show up on the camera’s view screen as “cold” or “hot” spots, which
reveal hidden problems that often cannot be detected in the course of a traditional visual inspection.
These problems may include:
·
Faulty wiring, breakers and
fuses
·
Hidden moisture intrusion
· The moisture sources of mold
· Pipe and duct work leaks
· Roof and ceiling leaks
· Foundation cracks
· Heat/energy loss
· Structural concerns
· Missing insulation
· Ventilation problems
· Moisture associated with termite nests
· Rats, mice and other pests
Combined with traditional home inspection techniques, the infrared
inspection method reveals substantially more of the house than can be perceived by the naked eye and conventional inspection
tools. Many things can't be seen with only a flashlight.
Examples of infrared inspection applications:
§ Water intrusion: scanning
interior surfaces of a building with an infrared camera can reveal excess moisture due to plumbing leaks, roof leaks, leaks
around windows, etc. Wet areas of building materials cool when energy is transferred during the water evaporation process;
therefore, a wet (“cooler”) area will stand out from the surrounding dry (“warmer”) surface.
§
Insulation deficiencies: appreciable temperature differences, due to variations in thermal energy (heat) transfer, allow for detection
of deficient or missing insulation when scanning ceiling and wall surfaces. Infrared is especially effective on older homes
with minimal insulation that has become compressed in areas.
§
Roofing leaks: scanning roof coverings can reveal water intrusion and accumulated moisture below the surface. Due to
its thermal properties (high thermal capacity), water typically gives up heat at a much slower rate than the surrounding roof
materials. The areas of accumulated moisture can therefore be detected when scanning the roof surface. This type of
roof inspection is best done in the evening or early nighttime after thermal energy imparted during the daytime is transferred
or released.
§
Electrical systems: deficiencies within the electrical system can be made visually apparent by use of an infrared camera.
For example, a deficient connection between electrical components can result in resistance which will manifest in an apparent
temperature elevation when compared with similar types of connections under similar load conditions. An infrared
image of the electrical panel can reveal overheating of a circuit breaker.
§
Structural issues: differences in thermal capacity, conductivity, and other intrinsic qualities of building structural components
can allow for their detection when scanning walls, floors, and ceilings with an infrared camera. Under the right temperature
differential conditions, missing structural components, and portions of structural components which are damaged (to the extent
that their intrinsic qualities are significantly changed), can be detected.
NOTE: Although
infrared thermal imaging is a far better diagnostic tool than the naked eye, it does not guarantee 100% accuracy, unless removal
or destruction of components can be achieved to validate findings. When possible, other tools are used to verify thermal images.
Thermal imaging combined with my traditional home inspection services improves the quality of the information you will have
at your disposal to make that all important decision regarding the property. But, even with these considerations I do not
claim to have x-ray vision. The infrared camera can not see through walls as it is measuring surface temperatures. Conditions
can change and may cause the apparent temperatures revealed on thermal images to be different at any given time.