This is how i installed my dwv drain waste vent pipe through my metal roof.
Installing vent pipe in metal roof.
Apply silicone caulking around the area where the vent pipe penetrates the roof.
In this video i cover installing a roof boot for a vent pipe in a metal roof.
The flashing will be fitted with an aluminum flange.
A roof boot for a metal roof will also have a heat rating.
Prepare the roof area.
Insert the roofing membrane with the backing removed through the pipe.
Look for one that is heat rated to at least 212 degrees f.
Trim the edges of the roofing membrane by an inch all around.
This is done because you need to overlap the flashing.
The metal i m using is called crinkle black i purchased all my materials at h.
How to overcome vent pipes when putting on a metal roof step 1.
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Install the panels leading up to the vent pipe until getting as close as possible to the pipe.
Various size vents will come.
This may include the round whirlybird types that are placed.
To offer water protection around the pipe vents on a metal roof you will have to use a pipe flashing created specifically for the corrugated surface of a metal roof.
How to install vents on a metal roof step 1.
Below are some links to the tools i used on this project.