Aeration of Buildings

the orderly natural ventilation which occurs because of the density difference between the external and internal air and the action of the wind on the walls and roof of a building. Aeration is used in industrial buildings and shops (forges, foundries, rolling mills, and such) which have considerable excess heat, making possible ventilation rates of up to millions of cu m/hr without expending energy to move the air. In the aeration of buildings, external air enters a room through windows (apertures) without preheating in the lower part of the building and forces out the warm and polluted air through apertures or ventilation skylights in the upper part of the building. In order to avoid catarrhal illnesses during a cold period, the apertures for the entering air are opened at a height of no less than 4 m from the floor. To keep the wind from disturbing the operation of the aeration exhaust skylights, wind deflectors are mounted in front of the skylights to prevent them from blowing in. The flaps of the windows and skylights are fitted with mechanical regulating devices.