[AIVC, Air infiltration and ventilation glossary, 1992]:an expression that describes the air leakage rate of a building or component. This may be: a) The air leakage flow rate at a reference pressure difference across the component or building envelope, (Usually … Continue reading →

[AIVC, Air infiltration and ventilation glossary, 1992]:the rate of air leakage in or out of a building or space. [EN 12792:2003, 27]:air leakage of a component or components subjected to air pressure.