| 摘要 |
A roof vent comprises two parts, a cover and a conduit. The conduit, with a pipeline already attached, can be easily connected to the cover, after the cover has been installed on a rood. The conduit will plug into the cover making installation easy. The vent includes a channel or moat which surrounds the outlet of the conduit. Thus, if during extreme weather conditions, moisture passes into the cover from outside through its opening and if it ge ts past the door flap, it will be trapped in the channel.
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