Studies on a fire retardant coating on expanded polystyrene underdeck roof

Abstract

Underdeck roofing or false ceiling was originally developed to conceal underside of floor above and to offer acoustic balance and control in a room It was invented by Donald A Brown of West Lake Ohio The space above the false ceiling called the plenum space is often used as a space for ventilation systems requiring only enclosed ducts that deliver fresh air into the room below Return air enters the ceiling space through open grills across the ceiling Further it is also used to hide the electrical wiring that run above the false ceiling to meet the changing needs of the office space In addition the underdeck roofing also helps in energy saving reducing heat transferred through ceilings by roof insulation newline