Air Permeability Testing

Air Permeability Testing (PULSE)

Pulse is a portable compressed air-based system that is used to measure the air leakage of a building or enclosure at a near ambient pressure level of 4Pa. In the UK, the system is a recognised air pressure testing methodology under both Part L1A building regulations and PAS 2035 retrofit guidelines.

Air tightness testing made simple

Pulse is used to measure the airtightness of buildings with tests completed in as little as 10 minutes. Measuring directly at low pressure, the system provides an air change rate measurement that is representative of normal inhabited conditions, helping to improve understanding of energy performance as well as background ventilation

Why measure building air tightness using Pulse?

Energy efficiency

Air leakage in buildings typically accounts for a third of total space heat demand. Measuring air leakage allows you to understand and address these losses reducing energy costs.

Ventilation strategy

By measuring directly at low pressure, the results are more closely representative of air leakage observed under ambient conditions. This helps to inform and design the overall ventilation strategy.

Build quality and trust

A building with good airtightness is a sign of quality workmanship. Testing for air leakage can give reassurance to homeowners that no corners have been cut and all leakage paths are properly sealed.

Versatile use

Measure a wide variety of new and existing buildings but also other specialist environments such as smoke shafts, cleanrooms, containment labs and cold storage compartments to name a few.

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