The big advantage of a metal chimney is ease of installation with minimal site modification.
Installing chimney pipe in metal roof.
In this video i cover installing a roof boot for a vent pipe in a metal roof.
The metal i m using is called crinkle black i purchased all my materials at h.
When installing a chimney for a wood stove on a metal roof you ll first need to assess the position.
Pipe we used retails for about 118 that s a little over 3 per inch.
High winds bend and damage unsupported pipes.
Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof.
You will need to cut the opening to the roof to extend the chimney pipe.
I prefer to use a dsa flashing also known as a dead soft aluminum flashing.
Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
A single wall pipe will require 18 inch clearance to the ceiling while double wall pipe needs an 8 inch clearance to the ceiling.
Many manufacturers offer rigid dual leg brackets to anchor pipes to the roof.
When calculating your chimney pipe size subtract 1 5 inches for each joint overlap.
However this convenience carries a price.
The flashing can be installed quickly and easily with kits that use rubber pipe boots.
Any pipe installation above a roof that is unsupported by a chimney chase needs proper support above the roof line.
Drill a small hole in this spot to mark the chimney s center.
The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant.
And there s the cost of the roof and support accessories.
This flashing is super thin and very flexible to curve around the humps in the metal roofing.
Following is the proceedure for installing the dsa flashing.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
No more than five feet of unsupported pipe is permitted.
A double wall pipe needs a 12 inch clearance space.
You can call us with any questions you may have.
Length of the 6 in.
