Installing Vent Pipe Through Roof

This is how i installed my dwv drain waste vent pipe through my metal roof.

Installing vent pipe through roof.

To prevent traps in downstream fixtures from being sucked dry like my friend s kitchen sink you install a vent pipe usually within 3 feet close to the fixture trap. Cut through the plywood and roofing material with your reciprocating saw. Vent a fixture by cutting into the drain line using a saw. There can t be any drains above the point.

This vent pipe rises vertically towards the roof where it opens to the atmosphere to get the needed replacement air. Extend a pipe upward from the tee and tie it into the main vent stack. Go into your attic. Be sure to subscribe.

The true vent is aligned vertically and attaches to your drain line through the roof. A double wall pipe needs a 12 inch clearance space. In this video i cover installing a roof boot for a vent pipe in a metal roof. Below are some links to the tools i used on this project.

Usually the vent pipe must extend six inches above the roof or 12 inches 30 5 cm away from vertical walls but double check your building codes and requirements to make sure. Position the vent pipe up to the bottom of the roof. The metal i m using is called crinkle black i purchased all my materials at h. Start in the attic and drill a hole through the roof in the desired vent location.

Each vent pipe shall extend through its flashing and shall terminate vertically not less than six inches above the roof nor less than one foot from any vertical surface you can run the pipe at the exterior but you probably should extend above the roof line. Follow the outline you marked out. Try to keep it close to the fan location. What is the normal size of most vent pipes.

Leave the drill bit sticking through the roof so you can find the hole. Install a sanitary tee. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. When calculating your chimney pipe size subtract 1 5 inches for each joint overlap.

With the pipe in a vertical position. 2010 uniform plumbing code states. 4 repeat the ventilation process with any other fixtures you re installing. True vents also have no water running through them.

Extend the vent pipe outside the building according to building regulations. How to install a vent pipe through a roof step 1.