This is true whether the roof is sloped or flat but the type of pipe boot depends on the type of roof.
Replace pipes sticking up out of the roof.
Just as drain pipes remove water and waste from your home the plumbing vent pipe also known as a plumbing air vent removes gas and odors it also allows fresh air into the plumbing system to help water flow smoothly through the drain pipes however no water.
They are tied directly into the sewage lines of the home and depending on the layout of the home there may be more than one soil vent stack through the roof.
The picture above gives a visual as to how soil pipe vents are plumbed.
No matter the type is a pipe boot becomes weathered or damaged a roof leak can occur.
Needless to say these pipes should never be altered or adjusted unless done by a trained hvac technician.
This metal pipe connects to a pvc pipe in the loft space above my garage and then connects to another pvc pipe at my garage s utility sink washer hookup.
The kitchen sink has a pipe for it same for the toilet laundry tub etc.
Without that vent and there s one connected to every drain in your house the water leaving your sinks showers and toilets would slow and hiccup and not have smooth operation.
If you really can t stand the sight of these pipes sticking out of your house consider a dormant winter plant so that it does not get harmed by the furnace exhaust.
What is a plumbing vent.
It looks like the top of the pipe may have previously had a cover based on some decay uneven edges around the pipe.
There are pipe boots installed on plumbing vent pipes that penetrate through roofs.
Those white plastic pvc pipes jutting out of your roof have little to do with your roof and a lot to do with your home s plumbing system.
Instead of the water having to replace the air the water easily pushes the air out the vent pipe.
Pipes on roof tops are not there for structural support.
Pic 1 of basement pic 2 of attic pic 3 of.
The plumbing vent also known as a vent stack helps regulate the air pressure in your plumbing system.
Heating and cooling des moines since 1997.
I noticed this uncovered pipe on my roof today when emptying my swamp cooler.
Those pipes that are sticking up through your roof surface are there to ventilate the sanitary plumbing system in your home.
It goes into a pipe in the attic that in pretty sure drains to the plumbing master pipe sump in the basement.
My house has a metal pipe that sticks out about 18 inches from the surface of my moderately pitched roof.
Those pipes sticking out of peoples roofs are doing just that letting air get behind the water that the home owner puts in the pipes when they flush or run water in a sink.
I put quotations around connects because the pipes do not line up very well and sometimes even come apart from each other.
