A roof vent pipe is a vital component of a building's plumbing system, designed to expel sewer gases and allow air to enter the plumbing drainage system. Positioned vertically on the roof, these pipes extend from plumbing fixtures, such as toilets or sinks, through the building's structure and out to the exterior. They help maintain proper pressure within the plumbing system and prevent the buildup of noxious gases that could otherwise pose health hazards.

A roof vent pipe leaking occurs when there is water infiltration around the vent pipe protruding through the roof. This can be due to damaged flashing, cracked seals, or improper installation. It often results in water stains on ceilings, walls, or attic spaces, and if left unaddressed, it can lead to further structural damage and mold growth. Prompt repair or replacement of the flashing and seals is necessary to prevent ongoing leaks and potential water damage.


屋顶通风管是建筑物管道系统的重要组成部分，旨在排出下水道气体并允许空气进入管道排水系统。 这些管道垂直放置在屋顶上，从厕所或水槽等管道装置延伸穿过建筑物的结构并延伸到外部。 它们有助于保持管道系统内适当的压力，并防止有毒气体积聚，否则可能危害健康。

当穿过屋顶的通风管周围有水渗入时，就会发生屋顶通风管泄漏。 这可能是由于泛水板损坏、密封件破裂或安装不当造成的。 它通常会导致天花板、墙壁或阁楼空间出现水渍，如果不加以解决，可能会导致进一步的结构损坏和霉菌生长。 必须及时修理或更换防水板和密封件，以防止持续泄漏和潜在的水损害。