Roof Ventilators by Canada Blower
Tags: Air Currents, Air Pressure, Blower, Canada, Canada Blower, Convection Currents, Cool Air, Deleterious Effects, Evaporation, Fan Fan, Lethargy, Natural Convection, Natural Ventilation, Oxygen Content, Perspiration, Poor Ventilation, Proper Ventilation, Relative Humidity, Roof, Roof Ventilator, Roof Ventilators, Ventilators, Windward Side, Winnowing

Natural ventilation depends on winds outside and convection currents inside a building. Winds raise air pressure slightly on the windward side of a building and lower it slightly on the lee side. The pressure difference promotes circulation into the building on the windward side and out of it on the lee side. Convection currents are caused by the sinking of colder and therefore heavier air, which displaces the warmer air. A building may have a roof ventilator to allow the rising warm air to escape. If there … Continue Reading



