How To Vent A Toilet Through The Roof

This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.

How to vent a toilet through the roof.

Understand how vent pipes work. For one reason or another it may be impractical or impossible to construct this main vent through the roof so it s usually permissible to extend it from another part of the house. The true vent is aligned vertically and attaches to your drain line through the roof. Plumbing air vents also prevent sewer gases from entering the home and allow wastewater gas and odor to escape.

Vent pipes run from waste or drain pipes upwards ending outside the building usually sticking up through the roof. For most households the toilet is one of the most important fixtures in the home. This allows unpleasant and potentially dangerous odors or fumes to safely leave your plumbing system escaping harmlessly into the air outside. The toilet is vented by the main roof stack.

True vents also have no water running through them. This is best implemented if a fixture rests close to the stack and the top floor of your home allowing the stack to serve as a vent. When water drains air must replace the space that was taken up by the water. Vent pipes supply fresh air to each plumbing fixture in the house which helps the system move water through the drainage pipes each time a toilet is flushed or a sink is drained.

To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom. The typical vent system consists of a network of pipes that connect to every drain p trap and extend via a main stack that pokes through the roof just above the main bathroom. Running a vent pipe out of the roof takes some careful preparation. Then drill a hole on the roof top.

Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. The fan will need to be an inline fan with ducting and a grill in the bathroom. See below for a shopping list and tools subscribe. Adding a vent to the roof wiil require a vent kit associated for the type of tiles you have diffence in prices if your not experienced you will need a roofer possibly scaffolding a crawler ladder all which depend on height of the roof.

If you didn t already know the main roof stack is the center of your home s venting system. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Toilet without a vent through a roof stack. Vent pipes provide this air by running outside the structure of the house.