Roof Vent Height Code
A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them.
Roof vent height code. So only use. In locations known for snow the vent pipe needs to be at least 51 mm 2 in in diameter and 305 mm inside an insulated area of a building before extending through the roof. The 1992 vent sizing tables below and more recent codes all require that all type b gas vents terminate above the roof with a listed cap or listed roof assembly in accordance with the manufacturer s instructions. Vent pipes shall terminate not less than 6 inches above the roof measured from the highest point where the vent intersects the roof.
12 4 1 extension above roofs. In addition the drainage piping of each building and each connection to a public sewer or a. Also see chimney height clearance code separate article that compares the b vent with other chimney types. Organizations such as the nrca recommend against this roof vent style in cold climates because it can promote ice dams.
Below are building code documents which you may download. Plumbing code citations for plumbing vent or vent stack clearance distances. Quoting the irc model plumbing code. Ubc 97 section 1505 attics.
Access draft stops and ventilation. 2010 florida building code plumbing 904 1 roof extension. Vents in these locations also should extend 610 mm 24 in above a roof.