Ceiling Vapor Barrier
Any penetration to the needs to be sealed and properly vented out through the roof. Even seemingly harmless penetrations like this built-in vacuum exhaust need to be vented outside as they are a source of warm, moist air.
Any penetration to the needs to be sealed and properly vented out through the roof. Even seemingly harmless penetrations like this built-in vacuum exhaust need to be vented outside as they are a source of warm, moist air.
