Infrared Inspection
An infrared inspection uses a thermal imaging camera to detect temperature variations on roof surfaces, walls, and ceilings that indicate hidden moisture, insulation gaps, or air leaks invisible to the naked eye.
Seeing What the Eye Cannot
Infrared inspection uses a thermal imaging camera to visualize temperature differences across roof surfaces, walls, and ceilings, revealing hidden moisture, insulation deficiencies, and air leaks that are completely invisible during a standard visual inspection. On flat roofs in particular, infrared scanning is one of the most effective ways to identify trapped moisture beneath the membrane that would otherwise go undetected until it causes visible damage or structural deterioration.
For insurance claims, infrared data can dramatically expand the documented scope of damage beyond what a visual inspection alone would reveal.
How Infrared Scanning Works on Roofs
The principle is straightforward: wet materials and dry materials have different thermal properties. During the day, the sun heats the entire roof surface. After sunset, dry areas cool at a uniform rate. Areas with trapped moisture retain heat longer because water has a higher thermal mass than dry insulation. The infrared camera captures this temperature difference as a visual map, with warmer areas (potential moisture) showing as distinct zones against the cooler dry background.
The scan must be performed under the right conditions: clear skies, minimal wind, and ideally 2 to 4 hours after sunset. The roof surface must have received direct sun exposure during the day to create the temperature differential.
Using Infrared Data in Claims
Infrared images with corresponding moisture meter readings create a powerful documentation package. The thermal image shows the extent of moisture intrusion, and the moisture meter confirms the findings with quantitative readings. This combination is difficult for a carrier to dismiss because it provides both visual and numerical evidence. On flat roof claims where the membrane appears intact from the surface but moisture has penetrated through seams, fasteners, or flashing failures, infrared data can be the difference between a denied claim and a full replacement approval.
Frequently asked questions
Wet insulation and trapped moisture retain heat differently than dry materials. After the sun warms the roof during the day, wet areas cool at a different rate than dry areas. An infrared camera captures these temperature differences as a thermal image, revealing the location and extent of hidden moisture.
The best conditions for roof infrared scans are after sunset on a clear day following several hours of sun exposure. The temperature differential between wet and dry areas is most pronounced during this cooling period. Cloud cover and wind reduce the effectiveness.
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