Horizontal Flue

The primary reason to perform a pre-drywall inspection is to identify potential issues before they become hidden with finished materials. In this recent pre-drywall inspection in Clarksburg, Maryland, a fireplace exhaust flue was identified to be installed through the house with no upward slope. The flue was installed completely horizontally; this condition can contribute to accumulation of dangerous, odorless, carbon monoxide gas inside the building as it discourages the hot gas fumes from rising naturally and safely to the exterior of the building. This condition would not have been visible after the walls were installed.