After selecting an area to install from inside the building square the template between the roof rafters and outline with a marker.
How to install roof flashing for vent pipe.
Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof.
Metal roof flashing installation.
Remove the old and clean the pipe.
Next use a reciprocating saw with a rough in blade to cut the out the marked template.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Be sure to clean the outside of the pipe from old caulk that could be in the way of the flashing.
Apply the last row of shingles that is just below the vent pipe as shown in figure 1.
Carefully remove all the shingles from the flashing.
Open valleys have metal flashing to protect this critical area of the roof.
To make the installation easier you can turn the flashing as you lower it in place.
Using a sawzall cut any roofing nails in the area of the lower mounting plate flush with the sheathing.
The flashing should be installed under the top and side shingles but it should be laid above the shingles that are below the vent pipe.
1 remove nails holding down shingles above the pip.
How to flash a metal roof.
A quick step by step guide on how to flash a metal roof.
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.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
The neck of the flashing should fit snugly around the pipe.
Use roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt.
How to install flashing around a vent pipe five steps to replace a vent pipe flashing 1.
Hammer the nails into the top and sides of the flashing.
Slide the new flashing over the vent pipe and under the shingles above the pipe.
Begin by removing the shingles at the affected area and removing old flashing if present.
Continue the next row of shingles cutting a hole for the vent pipe.
