utility
[ASHRAE Standard 62.2]:laundry, lavatory, or other utility room containing sinks or washing equipment.
Continue reading →Glossary Terms
vane control (of a fan)
(See fan control methods variable speed control)
Continue reading →vane ratio (of a grille)
[EN 12792:2003, 382]:ratio of the chord length to the vane pitch.
Continue reading →vapour barrier
[AIVC, Air infiltration and ventilation glossary, 1992]:a moisture impervious layer applied to the surfaces enclosing a space or to the surface of thermal insulation to limit moisture migration through the surface.
Continue reading →vapour barrier (duct)
[EN 12792:2003, 383]:vapour resistant coating applied to the exterior of the thermal insulation used on ductwork through which air flows at sub-ambient temperature. Also used for the same purpose in other building constructions. Its purpose is to avoid migration of … Continue reading →