You will need to cut the opening to the roof to extend the chimney pipe.
How to put correct pipe pipe roof.
Install a layer of roofing insulation as recommended by the roofing manufacturer.
Also remove and discard the existing pipe flashing and any old roof cement.
Select angle increment and hit full set to generate and print a full set of oval templates for currently entered pipe diameter.
No sales pitch or other fluff.
A single wall pipe will require 18 inch clearance to the ceiling while double wall pipe needs an 8 inch clearance to the ceiling.
Just simple 3d animated digital instructions on how to install a pipe boot on a metal roof.
Cut and use template to mark and cut sheet to fit pipe at 45 angle.
The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof.
Inspect the underlying roof sheathing for damage and make any needed repairs.
Go into your attic.
Water and waste head down the pipe while gasses are vented up and outwards.
Position the vent pipe up to the bottom of the roof.
A double wall pipe needs a 12 inch clearance space.
The stack pipe leads the whole way out through your roof and further underground in the opposite direction to main sewer lines.
The stack also allows fresh air in to keep water running smoothly through your piping.
To find pipe end shape not hole in sheet enter 0 for sheet thick.
Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents.
See our full range of installation.
When calculating your chimney pipe size subtract 1 5 inches for each joint overlap.
Apply roofing cement around the pipe and underlayment as it penetrates the roof to create a weather tight seal.
