| 摘要 |
<p>A ventilator has a body presenting a base flange (11) for flashing the ventilator to a roof or wall. The base flange (11) is formed on a base (10) having a wall (12) extending away from the base flange (11) on one side thereof and defining a ventilation opening (14) through the base (10). The wall (12) has lip portions (12 min ) overhanging the base flange (11). An outer body part of the ventilator body is composed of straight channel-sectioned members (16,16,17,18) removably interconnected with one another at their adjacent ends, the channel-sectioned members (16,16,17,18) each presenting a pair of walls extending away from the base flange to the outside of the ventilation opening defining wall (12) and each having its wall (e.g. 18 min ) adjacent to the ventilation opening defining wall (12) engaged under the overhanging lip portion (12 min ) of the wall (12).</p> |
