air drain English

Meaning air drain meaning

What does air drain mean?

— (construction) An ample space left at the foot of foundation walls for the sake of dryness.

What other words have the same or similar meaning as air drain?

ventiduct waste vent ventilator tube ventilation tunnel ventilation flue ventilation duct ventilating shaft ventilating duct vent vapour pipe vent tube vent pipe vent gutter stack vent soil vent snorkel gas outlet flowing-through pipe fan drift burn-out pipe breather-tube breather-pipe breather pipe air-duct air vent air passage air chute air chimmey air channel air box aeration pipe

air | drain