Installing Vent Pipe Through Roof

Cut through the plywood and roofing material with your reciprocating saw.

Installing vent pipe through roof.

When calculating your chimney pipe size subtract 1 5 inches for each joint overlap. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. How to install a vent pipe through a roof step 1. The true vent is aligned vertically and attaches to your drain line through the roof.

The metal i m using is called crinkle black i purchased all my materials at h. 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. A double wall pipe needs a 12 inch clearance space. Extend a pipe upward from the tee and tie it into the main vent stack.

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. Follow the outline you marked out. Vent a fixture by cutting into the drain line using a saw.

You will need to cut the opening to the roof to extend the chimney pipe. 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. What is the normal size of most vent pipes. True vents also have no water running through them.

Start in the attic and drill a hole through the roof in the desired vent location. Extend the vent pipe outside the building according to building regulations. Be sure to subscribe. This vent pipe rises vertically towards the roof where it opens to the atmosphere to get the needed replacement air.

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. Try to keep it close to the fan location. Go into your attic. Below are some links to the tools i used on this project.

2010 uniform plumbing code states. 4 repeat the ventilation process with any other fixtures you re installing. Position the vent pipe up to the bottom of the roof. Leave the drill bit sticking through the roof so you can find the hole.

There can t be any drains above the point. Install a sanitary tee.