How To Cut Hole In Roof For Stove Pipe

Then shine a bright flashlight through the pipe from the.

How to cut hole in roof for stove pipe.

Cut and use template to mark and cut sheet to fit pipe at angle. Drill a small hole in this spot to mark the chimney s center. You will need to cut the opening to the roof to extend the chimney pipe. The roof flashing may be the hardest part to installing a chimney pipe for a wood burning stove.

A double wall pipe needs a 12 inch clearance space. 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. When installing a chimney for a wood stove on a metal roof you ll first need to assess the position. Building code requirements state the opening had to be larger 1 or 2 than the pipe on all sides.

When calculating your chimney pipe size subtract 1 5 inches for each joint overlap. There is an easy trick for drawing out the hole. This is the double wall pipe so it is thicker than the interior single wall pipe. Select angle increment and hit full set to generate and print a full set of oval templates for currently entered pipe diameter.

Hold the pipe in place and run it up close to the roof decking. A single wall pipe will require 18 inch clearance to the ceiling while double wall pipe needs an 8 inch clearance to the ceiling. Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling. So this ended up being a rather large hole especially when compared to the smaller diameter of the single wall pipe.

Nobody wants a leaky roof or the damage it could cause to yo. The hole needs to be taller than your pipe diameter as the pipe isn t passing through the roof at a perpendicular angle. The problem is that a 3 inch round pipe needs an oval hole in a sloped roof.