| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation tower which enables sunlight to be taken into a habitable room in winter.SOLUTION: A ventilation tower 1 protrudes upward from a deck roof 3 of a building 2, and provides ventilation of air in the building 2. The ventilation tower 1 includes a window 10 which is provided on a side wall surface of the ventilation tower 1 and which takes sunlight inward, and a light reflection part 11 which reflects the sunlight taken in through the window 10, to a habitable room 4 below the ventilation tower 1. The light reflection part 11 has a plurality of reflectors 20. The plurality of reflectors 20 are vertically arranged along an inner surface of the window 10, and an angle of inclination of the reflector 20 in a lower position is set larger. |
