Vent Termination Above Flat Roof

Vent pipes should extend to outdoors above the building roof and should terminate vertically not less than 6 above the roof surface nor more than 24 and must be at least 12 from any vertical surface such as a nearby sidewall.

Vent termination above flat roof.

Collar 1 25 above and 3 below plate and positioned to the rear curb115 top view 1 25 11 50 wood frame sold separately insulation metal base 19 50. If the flat roof or the location of the vent on the flat roof will not have any chances of greater than 2 of puddling then some of the larger gooseneck vents will work fine as they usually incorporate a 2 to 3 vertical riser within the gooseneck that is sealed with silicone to the flashing pad. 802 6 2 termination requirements a gas vent shall terminate in accordance with one of the following. Horizontally through the building wall at a building gable end wall first choice or if the gable end is too distant terminate the bath vent down through a building soffit at the roof eaves.

The 2 10 rule states that combustion vents should terminate at least 2 feet above any part of the roof within 10 feet. Don t just blow the bath or kitchen vent exhaust into an attic nor even more crazy into a ceiling or wall cavity or into a crawl space. 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. Upc i 906 1 and 906 2.

Gas vents that are 12 inches 305 mm or less in size and located not less than 8 feet 2438 mm from a vertical wall or similar obstruction shall terminate above the roof in accordance with figure 802 6 2 and table 802 6 2. Flat roof model 486u imc 504 4 irc 1502 3 compliant model djk486u made in.