airing

[EN 16798-1:2019, 3.4]:intentional opening of windows, doors, vents, etc. for increasing the ventilation in a room.Since airing is the air change by manually operating windows or other openings, it has to be observed that it cannot be considered to be Continue reading →

airtightness

[AIVC, Air infiltration and ventilation glossary, 1992]:a general descriptive term for the leakage characteristics of a building. The smaller the air leakage rate at a given pressure difference across a building envelope, The greater the airtightness.(see air leakage characteristic)

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airtightness standard

[AIVC, Air infiltration and ventilation glossary, 1992]:a standard value of building or component air leakage corresponding to a reference pressure difference across the building envelope or component. Standard values may be expressed in terms of air change rate, flow rate Continue reading →