How To Cut Hole In Roof For Stove Pipe

Cutting any size hole in a roof is bad enough.

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. Cut and use template to mark and cut sheet to fit pipe at angle. Then shine a bright flashlight through the pipe from the. Nobody wants a leaky roof or the damage it could cause to yo.

Drill a small hole in this spot to mark the chimney s center. This is the double wall pipe so it is thicker than the interior single wall pipe. When calculating your chimney pipe size subtract 1 5 inches for each joint overlap. 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. You will need to cut the opening to the roof to extend the chimney pipe. A single wall pipe will require 18 inch clearance to the ceiling while double wall pipe needs an 8 inch clearance to the ceiling. A double wall pipe needs a 12 inch clearance space.

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. So this ended up being a rather large hole especially when compared to the smaller diameter of the single wall pipe. Hold the pipe in place and run it up close to the roof decking.

Building code requirements state the opening had to be larger 1 or 2 than the pipe on all sides. There is an easy trick for drawing out the hole. Select angle increment and hit full set to generate and print a full set of oval templates for currently entered pipe diameter.