Vent pipes vary in size.
Install vent stack roof flashing.
After shingling up to and around the vent pipe guertin uses 6 in wide strips of uncured epdm flashing tape with a butyl adhesive backing to flash around the vent pipe.
This flashing is super thin and very flexible to curve around the humps in the metal roofing.
Roofing nails per side photo 2.
Ventilation and attic vents.
The use of the correct sized vent boot as flashing will help to ensure a watertight seal.
Patented and proven both systems form a weathertight seal for vent pipe penetrations and utilizes three independent gasket systems which are designed to work in conjunction with each other to keep out the elements and you off the roof.
I prefer to use a dsa flashing also known as a dead soft aluminum flashing.
Longer than the diameter of the pipe.
Installing a new shingles on your roof is not a complex project.
Center the pipe in the flashing and push the flexible front corners up or down so that the flashing pipe is parallel to the vent pipe.
Get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles.
Rubber vent flashing automatically adjusts to any pitch lift the vent enough to spread caulk under the sides but not the bottom edge then nail with three 1 1 4 in.
Cut the pieces at least 6 in.
Starting at the lower half of the vent pipe i stretch a 5 in.
It s an stretchable uncured epdm membrane with a butyl adhesive backing and rated for full exposure to uv light.
How to install a flashing on a metal roof.
You can call us with any questions you may have.
30 gauge roof flashing with tapered stack is press sealed for maximum leak protection.
All oatey flashings are rated for a minimum of 180 f continuous heat and approved for type b installations.
Following is the proceedure for installing the dsa flashing.
1 remove nails holding down shingles above the pip.
However in order to ensure that the roof is watertight it is important that the shingles and flashing are installed properly around a vent pipe or drain stack.
Flashings are available in a variety of thermoplastic aluminum galvanized and copper materials.