Roof Breather Pipe

It is a vertical pipe attached to a drain line and runs through the roof of your home.

Roof breather pipe.

Upc i 906 1 and 906 2. Venting is critical to the operation of a residential or commercial plumbing system. It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system. The vent stack is the pipe leading to the main roof vent.

This old house general contractor tom silva shows how to create a watertight seal around a vent pipe. Look for a black pipe that is about three inches in diameter made of cast iron or pvc. Your vent pipe can become clogged from a variety of things. Drain pipes take the wastewater to the soil stack.

In many an older home this drain pipe is perhaps 4 inches in diameter and stays that size all the way through the roof. Other vent pipes that are smaller may connect to this full sized vent and that s perfectly fine. The vent system those plumbing pipes that stick out of your roof may be clogged instead. Why plumbing air vents are important.

In most cases the vent pipe exits through the roof. Standard aluminum vent portals plus insulation breathers and vents are used to prevent moisture vapor from becoming trapped in the roof system equalizing air pressure reducing the risks of ballooning blow off deteriorating insulation and separating deck seams. When the vent pipe is clogged it shows up within your home in a variety of ways from ghost flushing from your toilet to a sink that won t drain properly. A drainpipe attached to the p trap goes into an opening in the wall.

Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing. You will need a ladder to access the roof. Above the roof plumbing vent height. Vent pipes penetrate all the way through the roof in several locations of the house and each one needs to be maintained to keep water out.

See below for a shopping list and tools subscribe to. Through the stack sewer gases are carried up to the roof through vent lines. A full sized vent is a primary vent where the drain line transitions at some point and becomes the vent pipe that exits the roof.