| 摘要 |
PURPOSE: A roof is provided to smoothly discharge exhaust gas without installing an additional suction fan. CONSTITUTION: A loading sill(1") is formed in the upper circumference of a body(1). A flange portion(1') and an inserting potion of a sewer are formed in the lower circumference of the body. A joining member of an exhaust pipe is included in the center of the body. An exhaust pipe(5) is inserted in a connecting portion of the exhaust pipe. An inserting potion(4') of a rainwater inlet(4) having many inlet slots is inserted under the exhaust pipe. The circumference of a screen on the upper part of a loading bar is fixed by a lid(8) to be screwed in a screw portion of a cover by loading in a loading sill. Thereby, an installing space is minimized and ventilation is smoothly performed.
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