How To Install B Vent Through Roof

Plumbing vent pipes are connected to your drain system and are needed for water to drain properly.

How to install b vent through roof.

Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. When preparing to install a type b vent pipe keep in mind that the pipe itself must be wider than the flue and the pipe should extend into the flue by at least one foot. Running a vent pipe out of the roof takes some careful preparation.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Prepare the roof area. This is how i installed my dwv drain waste vent pipe through my metal roof. Vent your bath and kitchen exhaust fans through the roof through a special roof hood.

When water drains air must replace the space that was taken up by the water. Various size vents will come with recommendations regarding spacing and placement based on the size of the vents and the expanse of the roof. No sales pitch or other fluff. Locate the point in the underside of the roof where the system is to penetrate 1 1 2 to 3 using a plumb bob or level.

See below for a shopping list and tools subscribe. This will involve determining the placement of the vents. A type b vent pipe functions to remove potentially harmful gases and fumes that build up in a heating system by channeling them out of a room. Use a marker or a chalk line to mark the spot on the roof surface where the vent will be placed.

Including the area the pipe passes through the roof. Be sure to subscribe. Just simple 3d animated digital instructions on how to install a pipe boot on a metal roof. The combination cap is designed to accommodate roof pitches from flat to 6 12 and is available for 3 through 6 diameter b vent pipe.

Below are some links to the tools i used on this project. What to know before you install b vent furnace pipe.