Without the venting the sewage gas would leak through the water in the plumbing trap.
Why plumber go to roof top.
This is a case where an ounce of prevention is worth a pound of cure.
In most houses the main vent stack which opens onto your roof is a continuation of the soil stack which is the vertical waste pipe that leads to the sewer.
The vents also allow gases to safely escape through the roof.
Plumbing vent pipes are located on roofs away from windows or air conditioning units so that the fumes can easily dissipate.
If there should arise an occurrence of loft get to is beyond the realm of imagination then the roof plumber should go onto the roof.
The plumbing venting helps to create neutral or equalized air pressure throughout the waste pipe system.
When a clog occurs in a vent pipe you normally climb atop the roof to attack it but you can also try to clear it out from within the house.
Plumbing air vents also prevent sewer gases from entering the home and allow wastewater gas and odor to escape.
Because most drain vent pipes are up near the roof sometimes debris from the roof can even clog a pipe.
Instead they serve to equalize air pressure within the dwv system and also release sewer gases into the outdoor air as all vent pipes terminate through the roof.
They also work to vent any sewer gases and nasty odors.
The vent pipes are part of the drain waste vent or dwv system of a house or building and they do not carry water inside them.
Pipe vents provide air a way into waste pipes to prevent siphoning of plumbing traps.
Bird s nests debris and rodents are all known culprits for clogging vent pipes.
If you find yourself confused about whether a water leak originates from the plumbing or the roof give our experienced master plumbing technicians a.
This long pipe is called a plumbing vent sewer vent plumbing stack vent or roof vent.
A plumbing vent lets air into your pipes to help regulate air pressure and make sure that waste is moving through your pipes properly.