(See leakage area, specific)

[EN 12792-2003, 338]:maximum distance (dv) between two vertical planes tangent to a specified isovel and perpendicular to a plane through the centre of the core of an air jet. There may be two different spreads, not always equal: one for … Continue reading →

[AIVC, Air infiltration and ventilation glossary, 1992]:the pressure differential across a building caused by the differences in the density of the air due to an indoor-outdoor temperature difference.(see neutral pressure level). [EN 16798-7:2017, 3.12]:pressure difference caused by the difference in … Continue reading →