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