Roof Vent Clearances

2 5 feet above the roof surface.

Roof vent clearances.

Manufacturers recommendations usually take precedence over local building codes but you won t know for sure which takes precedence or what those manufacturers recommendations are. The 2 10 rule states that combustion vents should terminate at least 2 feet above any part of the roof within 10 feet. Table of rooftop chimney clearances for metal b vent chimneys flues. 2 0 feet above the roof surface.

Exhaust vents must be protected against rain and equipped with back flow prevention features e g flap dampers. 1 5 feet above the roof surface. The epa and other guidelines somewhat follow the standard codes for plumbing vent pipes which generally are vented above the buildings roof. Roof pitch rise run in inches.

To a height of only 2 in. In all areas exhaust vents should be at least 1 foot above roof surface. Exhaust vents must not be allowed to be obscured or hidden by vegetation. Window or fresh air intake.

Minimum height above the roof surface 1 flat to 7 12. Vegetation must not be allowed to grow within 3 feet of an exhaust vent. The quench vent should be a minimum of 5 m above walking surfaces. The exit point for the quench vent pipe should be located away from operable windows and air inlets.

1 0 foot above the roof surface 1 7 12 to 8 12.