How To Install Vent Pipe Thru Roof

Position the vent pipe up to the bottom of the roof.

How to install vent pipe thru roof.

Be sure to extend the pipe up at least 2 to 3 above the roof to prevent snow buildup from causing problems. This is how i installed my dwv drain waste vent pipe through my metal roof. Water and waste head down the pipe while gasses are vented up and outwards. See below for a shopping list and tools subscribe.

Cut through the plywood and roofing material with your reciprocating saw. The stack also allows fresh air in to keep water running smoothly through your piping. Next run the 3 piping across the ceiling of the attic down to the master bath using a 90 degree bend and an even layer of cement glue to connect the pvc pipe and fittings. Follow the outline you marked out.

Below are some links to the tools i used on this project. How to install a vent pipe through a roof step 1. The stack pipe leads the whole way out through your roof and further underground in the opposite direction to main sewer lines. Be sure to subscribe.

Once we had the pipe extension connected we figured out where the new vent pipe would need to pass through the roof using a piece of scrap wood held flush with the pipe. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. You can buy the proper flashing to install it on a flat roof and a roof cap that has screen around it to prevent insects from entering. With the pipe in a vertical position.

Where the scrap wood hit the understructure of the roof we drilled a hole straight through to the outside.