[AIVC, Air infiltration and ventilation glossary, 1992]:a form of vapour barrier where a moisture impervious layer is introduced inside the “cavity” of a cavity wall, usually polythene sheeting.(see vapour barrier; cavity wall)
Continue reading →[AIVC, Air infiltration and ventilation glossary, 1992]:a wall built of two leaves, separated usually by a continuous gap. The two leaves are connected by ties at intervals. The inner layer may be double for floor bearing.
Continue reading →[AIVC, Air infiltration and ventilation glossary, 1992]:a story in a building whose floor line is below ground level at any entrance or exit, the ceiling of which is not more than 5ft above ground level whose primary function can be … Continue reading →
(See fan types)
Continue reading →[EN 12792:2003, 67]:heat exchangers in which heat is transferred from the air to a colder medium.(see also heat exchanger)
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