On larger homes with multiple bathrooms and plumbing.
What does a roof plumbing vent look like.
It will look much like a toilet drain pipe and will either stop in the attic and be capped or will continue straight up and through the roof.
The vent stack is the pipe leading to the main roof vent.
When a vent becomes clogged it shows up within the home as.
Here is how you do it.
It will look like a vertical pipe running through the roof.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system.
Its drainage and vent functions are actually two systems.
Both sinks connect at one point sharing a common true vent to the stack.
When the drainage pipes carry waste out of your home the vent pipes supply fresh air to the plumbing fixtures so they can repeat the process and continue moving waste out of your home.
The vent pipe works hand in hand with the drainage pipes.
The vent pipes remove or exhaust sewer gases and allow air to enter the system so that the wastewater flows freely.
You know the black plumbing pipes that stick up out of your roof.
The purpose of a plumbing vent in your house is to remove sewer gases from the drainage system and equalize its atmospheric pressure.
Place the flashing or boot onto the plumbing vent so the base is resting on shingles.
This is true whether the roof is sloped or flat but the type of pipe boot depends on the type of roof.
The drainpipes are made of cast iron galvanized pipe copper or plastic.
No matter the type is a pipe boot becomes weathered or damaged a roof leak can occur.
This image clearly displays what the loop vent looks like which you may need to use if your sink is too far away from the stack for a re vent pipe.
Local building codes that regulate the materials used in the dwv system have changed over the years so most older homes have a combination of materials.
Momentarily lift the boot and apply sealant to hold the flashing in.
Installing a roof plumbing vent is typically an easier task than flashing a chimney.
It also shows what the sanitary cross would look like if you happen to have a sink on the other side of the wall.
Without the plumbing vent our toilets and all other home plumbing fixtures might not be draining properly can cause unusual noises like gurgling or belching as and after they discharge and could be responsible for an unpleasant sewer gas smell inside the house.
Install shingles as normal up to the base of the plumbing vent.
Why plumbing air vents are important.
When a sink isn t draining properly and the waste line isn t clogged you may need to take a look upward to find the culprit up toward the vent system.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
