The vent stack is the pipe leading to the main roof vent.
Vent pipes through a metal roof.
Allow for thermal movement.
It is a vertical pipe attached to a drain line and runs through the roof of your home.
Vent pipes provide this air by running outside the structure of the house.
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It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system.
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Running a vent pipe out of the roof takes some careful preparation.
True vents also have no water running through them.
On roofs with slopes as low as 2 12 sliding snow impacting an unprotected pipe can tear the metal roof or shear the pipe off flush with the roof.
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In northern areas vent pipes should be located as high as possible or otherwise protected against sliding ice and snow from above.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
Plumbing vent pipes are connected to your drain system and are needed for water to drain properly.
When water drains air must replace the space that was taken up by the water.
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While the true vent is simple it isn t always a possible solution since fixtures are rarely located so close to the stack.
Why plumbing air vents are important.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
Re vent pipes otherwise known as auxiliary vents attach to the drain line near your fixture as they run upwards and over the main vent.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
However there are a few simple tips that will help make the process a little easier and also ensure that the vents are placed to allow the maximum benefit.
