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 E-Mail IMAGE: ORNL s non-disruptive air leak detector captures air escaping from exterior walls and uses refractive imaging to calculate the leakage flow rate. view more  Credit: ORNL, U.S. Dept. of Energy Buildings - The mirage effect A team of researchers at Oak Ridge National Laboratory has developed a method to detect and measure air leaking from a building s walls and roof that is quicker, cheaper and less disruptive to occupants. Current air leak detection options, such as using a blower door and smoke or infrared thermography, are costly and invasive. ORNL s method is conducted from outside, using an imaging technique to visualize the flow of air leaks and calculate the volumetric flow of air based on the refraction effects imaged by cameras.

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