UNITIZING METHOD FOR AIR CONDITIONING DUCT

摘要

PURPOSE:To provide a method for safely executing an air conditioning duct for effectively preventing condensation in a short period with a low cost. CONSTITUTION:A method for unitizing an air conditioning duct comprises the steps of manufacturing an air conditioning duct unit 1 in which a flexible and shrinkable main duct 4 is connected to a branch duct 7 and which is flocked heat insulated, conveying the unit 1 to an executing site, and suspending it from a floor slab of an upper stair.