Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling.
How to install a chimney pipe through the roof.
When installing a chimney for a wood stove on a metal roof you ll first need to assess the position.
Drill a small hole in this spot to mark the chimney s center.
Chimney planning step 2.
When calculating your chimney pipe size subtract 1 5 inches for each joint overlap.
The chimney pipe must protrude through the roof a minimum of 2 feet and it must be at least 10 feet away from the roof line.
A double wall pipe needs a 12 inch clearance space.
Obtain addition sections of stove pipe if necessary.
Make sure to put a bead of silicone around the storm collar where it meets the chimney pipe.
Determine the number of chimney pipe lengths required the chimney must extend at least 3 feet above the highest point where it passes through the roof and be at least 2 foot higher than any part of the building within a horizontal distance of 10 feet figure 2.
While you re still on the roof attach the storm collar to the chimney pipe.