Sewer Pipe Venting In Attic

Sometimes plumbing vent disappearance may also be blamed on the roofer if it was too short he could just go over it with new roofing material.

Sewer pipe venting in attic.

Especially possible if a front comes through changes the pressures and temperatures. Vent pipes look like sewer pipes only two plumbing set ups could require sewer pipes in the attic. That is dry vent piping carrying only air sewer gas or moisture to above the roof line is unrestricted. This is the purpose of a venting system.

Venting is critical to the operation of a residential or commercial plumbing system. The stack pipe leads the whole way out through your roof and further underground in the opposite direction to main sewer lines. As water goes down a drain air is needed to equalize the pressure in the drain line. However the piping does need to be protected from nails use nail plates to protect vent and drain piping both where where piping passes through studs joists or rafters.

In this video i talk about a cheater vent that is sometimes used in plumbing systems. No a clogged sewage vent pipe would not cause condensation on the outside of the pipe. If you work carefully you won t disturb the roof flashing. If the drain lines in your home have poor venting as in figure a for example water rushing down the drains will pull water from nearby p traps.

The first would be a bathroom or kitchen in that part of the house and the other would be a. For one reason or another it may be impractical or impossible to construct this main vent through the roof so it s usually. You ll probably have to go to a plumbing supply store to find the 3 in to 4 in. A cheater vent is often referred to as an air admittance valve and is.

The same holds true for plumbing vent pipe. Or the plumber just stopped it in the attic or forgot to install it at all plumbing vent flashing must be properly installed and vent stack pipe should extend at least 6 above the roof surface. Venting into attic in cold weather you can also add extra moisture to the attic area that could condense on the underside of the roof and cause moisture and possibly mold. Water and waste head down the pipe while gasses are vented up and outwards.

Then check the attic to make sure there are no other leaks. The stack also allows fresh air in to keep water running smoothly through your piping. Still it s a good idea to spray the flashing area on your roof with a garden hose.