The hole needs to be taller than your pipe diameter as the pipe isn t passing through the roof at a perpendicular angle.
How to cut hole in roof for stove pipe.
Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling.
There is an easy trick for drawing out the hole.
A single wall pipe will require 18 inch clearance to the ceiling while double wall pipe needs an 8 inch clearance to the ceiling.
Cut and use template to mark and cut sheet to fit pipe at angle.
When installing a chimney for a wood stove on a metal roof you ll first need to assess the position.
You will need to cut the opening to the roof to extend the chimney pipe.
Cutting any size hole in a roof is bad enough.
Drill a small hole in this spot to mark the chimney s center.
When calculating your chimney pipe size subtract 1 5 inches for each joint overlap.
The problem is that a 3 inch round pipe needs an oval hole in a sloped roof.
Then shine a bright flashlight through the pipe from the.
Hold the pipe in place and run it up close to the roof decking.
Nobody wants a leaky roof or the damage it could cause to yo.
When plumbing pipes and chimneys have to go through sloped roofs they are always cut fairly large just to make sure that the pipe will pass through.
Now that the hole was cut my friend ran back down the ladder and up into the attic so that we could connect the vent pipe through the roof.
The roof flashing may be the hardest part to installing a chimney pipe for a wood burning stove.
To find pipe end shape not hole in sheet enter 0 for sheet thick.
A double wall pipe needs a 12 inch clearance space.
This is the double wall pipe so it is thicker than the interior single wall pipe.