What is the purpose of a roof vent?

All houses have plumbing vents that extend through the roof. These vents allow air to flow both in and out of the house plumbing system, helping water to flow through the pipes. Working in combination with the vapor traps, gases from the sanitary sewer system are vented safely through the roof.

Show All Answers

1. What causes blockages to occur?
2. Does it make a difference how much water gets into the sanitary sewer system?
3. What causes sewer odors inside the house?
4. What is the purpose of vapor traps?
5. What is the purpose of a roof vent?