| 摘要 |
<p>An insulating sleeve designed for positioning over a sewer vent pipe associated with a dwelling includes a tubular--shaped member constructed of insulating material which is covered by a protective outer shell. Additionally, the ends of the sleeve are provided with watertight seals and a roof shield may be utilized to effectively attach the sleeve to a roof. The sleeve is designed to prevent frost and snow buildup within a sewer vent pipe in cold climates.</p> |
