The flue must rise high enough to create a 2 3m horizontal clearance between the top of the last length of pipe and the surface of the roof.
Log burner flue through flat roof.
Install the pipes for a wood stove carefully.
The flue can then be attached to the wall all the way up to the roof where it can deposit fumes at a safe distance at your rooftop this should be at least 1 metre above your house guttering.
If the chimney or flue exits the roof within 600mm horizontally of the ridge then the flue or chimney should be a minimum of 600mm above the ridge.
Once the hole is marked use your sawzall and cut the hole through the roof.
Stovesonline can design plan specify supply and support fitting i wide range of lead nu lead alu based or epdm flashing to enable leak proof and watertight joins between your flue system chimney and roof.
An easy way to mark the hole you need to cut is by using the flashing as a stencil and spray painting the inside on the roof shingles.
Properly installed pipes will keep a wood stove working for many years to come.
Take your adjustable roof flashing and center that on the screw you ran through the roof deck.
It must rise at least 1000mm once passed the roof line soffits gutter basically the lowest section of the roof surface or as high as the ridge.