Outdoor duct, construction method of outdoor duct

摘要

PROBLEM TO BE SOLVED: To develop a technology capable of improving work efficiency of a construction work in a veranda, and surely securing separation between an exhaust air outlet and a supply air inlet for ventilation.SOLUTION: A construction method of an outdoor duct is provided for assembling the outdoor duct 10 capable of taking air or exhausting air from a vent hole 34c of a lower plate portion 31, by mounting a frame body 31 on a wall and poles around the veranda floor 21a while separating from the veranda floor 21a upward, making a strip body 42 for equipment pass through a strip body insertion hole 33e of an upper plate portion 33 of the frame body 31 and a sleeve of a wall 22 of a building, and connecting a ventilation duct 41 at a building side to a ventilation duct connection port of the upper plate portion 33 before finishing the veranda floor 21a, then performing a veranda floor finishing process, drawing out the strip body 42 for equipment downward from the strip body insertion hole 34e of the lower plate portion 34 of the frame body 31, and mounting an outer plate 32 on a side periphery of the frame body 31. Further an outdoor duct 10, and a unit 30 for duct used in assembling the outdoor duct 10 are provided.SELECTED DRAWING: Figure 3