Air leakage testing of ventilation and air-conditioning ductwork in commercial buildings — to cut energy losses and meet design standards.
Leaky ductwork is one of a building's biggest hidden costs: fans consume more energy, conditioned air is lost into ceilings and shafts, and untreated air bypasses filtration.
During the test, a duct section is sealed, a Retrotec DucTester applies the design pressure and precisely measures the leakage flow. The result is expressed as an airtightness class (ATC 1–7 / A, B, C, D) — exactly the figure required by the design, the supervisor or a certification scheme.
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