Sewer Roof Vent Iced Over

I installed insulation wrap on the sewer vent pipe in the attic but it didn t help much.

Sewer roof vent iced over. Your plumbing vent pipes sit exposed on your house s roof where objects such as tree twigs tennis balls and even snow may fall down the pipes. If this happens pour warm water down the roof s sewer vent stack. Try to have the vent pipe come out on the sunny side. There are a number of possible causes of blocked sewer vents.

Typically the short smaller diameter vent pipes less than 4 inches can freeze shut. The diameter of the vent pipe varies from 1 1 2 to 6 inches. The outlet on the roof has still frozen twice this winter. The pipe through the attic is 3 and the roof vent pipe is 4 so the outlet of the sewer vent pipe on the roof has a metal cap which reduces the opening down to about 2.

If you live in a cold weather environment your sanitary waste system s roof vent line probably freezes in the winter. Causes of blocked sewer vents and their solutions. Paint the vent pipe black so it absorbs a little heat from the sun. What is a plumbing vent.

Sewer vent pipes on the north side of the roof also may be more prone to frost plugging than those on the south side of the roof. These three are the most common. If enough snow falls in your area during a short period of time the pipes may become clogged with the snow which may freeze in the vent pipe. Sewer vent pipes are on the roof of homes and other buildings.

The plumbing vent also known as a vent stack helps regulate the air pressure in your plumbing system. Snow buildup in your vent pipes can lead to sewer gases inside your house. 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. For long periods of cold weather install a temporary heat tape down the vent pipe on the roof.

The frost free sewer vent stays clear of ice without treacherous trips to the roof patented easy to install vent sized to fit all standard pipes. Excessive snow on the roof can block the vent s stack and cause freezing.