Installing Vent Pipe Through Roof

There can t be any drains above the point.

Installing vent pipe through roof.

Start in the attic and drill a hole through the roof in the desired vent location. Vent a fixture by cutting into the drain line using a saw. This vent pipe rises vertically towards the roof where it opens to the atmosphere to get the needed replacement air. 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.

With the pipe in a vertical position. 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. You will need to cut the opening to the roof to extend the chimney pipe. A single wall pipe will require 18 inch clearance to the ceiling while double wall pipe needs an 8 inch clearance to the ceiling.

Go into your attic. Install a sanitary tee. 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. This is how i installed my dwv drain waste vent pipe through my metal roof.

Be sure to subscribe. In this video i cover installing a roof boot for a vent pipe in a metal roof. What is the normal size of most vent pipes. Try to keep it close to the fan location.

When calculating your chimney pipe size subtract 1 5 inches for each joint overlap. Follow the outline you marked out. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Extend a pipe upward from the tee and tie it into the main vent stack.

True vents also have no water running through them. The metal i m using is called crinkle black i purchased all my materials at h. 2010 uniform plumbing code states. 4 repeat the ventilation process with any other fixtures you re installing.

Leave the drill bit sticking through the roof so you can find the hole. The true vent is aligned vertically and attaches to your drain line through the roof. Position the vent pipe up to the bottom of the roof. 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.

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