A metal, plastic or composite pipe (usually 4 inch in diameter) leading from the sewage network out through the roof to prevent pressures during sewage flow.
a vertical plumbing pipe system designed to vent noxious gases and prevent siphonage from traps.
a special ventilating pipe that connects with a soil or waste stack below the lowest fixture and extends to a point above the highest fixture, where it may again connect with the stack or extend separately through the roof
Vertical soil pipe connected to the drainage system to allow ventilation and pressure equalization.
A pipe riser that extends through the roof to the outside atmosphere to allow sewer gases to escape from plumbing system.
A vertical vent pipe installed for the purpose of providing circulation of air to and from any part of a drainage system.
Provides circulation of air to and from drainage system.
A plumbing vent pipe in a multistory building, a separate pipe used for venting, that either connects with a stack vent above the highest fixture, or extends through the roof.
Upper portion of the soil stack above the topmost fixture through which gases and odors escape.
"Vent stack" means a vertical vent pipe installed to provide circulation of air to and from the drainage system.
A vertical line in a venting system leading out of a structure.
top section of soil stack that extends out through roof.
The upper portion of a vertical drain line through which gases pass directly to the outside. The main vent stack is the portion of the main vertical drain line above the highest fixture connected to it. Home Improvement Encyclopedia
The vertical vent pipe installed to provide air circulation to and from the drainage system and that extends through one or more stories.