| 摘要 |
PURPOSE:To preferably perform natural ventilation in indoor space with a simple structure by communicating outdoor with attic space via a ridge capable of being in a natural ventilation and opening a vent hole at a ceiling plate which partitions between the attic space and indoor space. CONSTITUTION:A ventilation ridge 6 is provided at the ridge 2, thereby performing the natural ventilation of the attic space 1. The ridge 6 is bridged over right and left ridge beams 9 laid on the ridge 8 through a rafter 7. A drain plate 10 and a windshield plate 14 are secured to the beams 9, and an exhaust port 17 is opened at the center of the top plate 16 which connects the right and left plates 14. A support 22 which places a rain shielding shade 21 is provided at the middle of a gate-shaped bracket 11. On the other hand, a vent hole 5 is formed at a ceiling plate 4 which partitions between the space 1 and the space 3, a louver member 31 is mounted at the hole 5, and a damper 34 is arranged therein. The member 31 is connected to a duct mounting port 30 via shrinkable duct 32. |
