Abstract: A venturi-type system for cooling a roof by rapidly moving the hot air beneath roof tiles. The air cooling system is passive, and accelerates the evacuation of hot air from beneath roof tiles by creating a venturi system at the uppermost portion of an angled tile roof.

Abstract: A building comprising an exterior wall having an outer air convection layer provided therein with an lower opening communicating with an atmosphere and an upper opening communicating with an atmosphere and an inner air convection layer provided therein with a lower opening communicating with an atmosphere and an upper opening communicating with a garret space, which in turn communicates through a ridge venting hood with an atmosphere.

Abstract: A ventilated roof and wall structure wherein a base roof plate is spaced from a top roof plate defining a roof air gap, such that a base roof plate slide plate is slidably mounted to permit selective communication of an attic spaced relative to the air gap, wherein the roof structure terminates in an air tube at a peak portion of the roof structure, and the vent tube is open at each end and includes at least one vent pipe to vent trapped air in the roof air gap receiving such air from the attic space and air flow from the walls to assist air flow throughout the roof air gap and assist in ventilation of the structure minimizing heat buildup within the associated dwelling.

Abstract: A circulation air distributing system for supplying fresh conditioned, hot or cold air through the use of cells metal cellular flooring. Distribution box inserts are uniformly distributed along the cellular flooring units prior to concrete placement. Selected distribution box inserts are activated to provide individual control means including diffuser means, for supplying individual workstations with fresh air at the volume, the temperature, and in the direction desired by the occupant. Air movement is from the floor surface upwardly toward the ceiling and into a return plenum space provided above the ceiling structure. In the event of a fire, selected diffuser means may be replaced by mask assembly which provide fresh, breathable air to an individual. Signal means activated on connection of the mask assembly to the control means, alerts the fireman as to the location where rescue is required.

Abstract: A service wall constructed from at least two mutually connectable and free-standing wall-sections. Each section includes at least two mutually separate cable channels which extend in the longitudinal direction of the section and which are intended to accommodate electric cables, telecommuncation cables and data communication cables. The wall-section also includes a ventilation channel which extends in the longitudinal direction of the section and which is separate from the cable channels.

Abstract: In a composting process, a heat conductive ventilation hood overlying a compost pile undergoing active composting. The hood is shaped so that process air emanating from the pile contacts the undersurface of the hood while ambient outside cool air is caused to traverse the upper surface of the hood. As a result of this heat exchange arrangement process air is dehumidified while concomitantly the ambient air is heated. The hood is pitched to cause condensate to run down its surface and not to drip. Warmed ambient air is used to heat the composting facility and dehumidified process air and condensate is reused in the composting process.