| 摘要 |
A roof vent pipe leak collection device comprising a surface extending outwardly and upwardly from the outer surface of the vent pipe and terminating below the roof, the surface defined by a lower end, arranged in water-tight engagement with the outer surface of the vent pipe, and a wider, upper end spaced-apart therefrom; the surface further defining an open-topped cavity exterior of the roof vent pipe to collect drops of liquid falling from above and liquid running down the outer surface of the vent pipe, and at least one aperture formed in the wall of the roof vent pipe, entering from the outside thereof in the cavity and opening into the interior of the vent pipe a spaced distance above the entrance to convey liquid collected in the cavity into the interior of the vent pipe while inhibiting the escape of gas and fumes therefrom.
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