Metal roof flashing installation.
How to install roof flashing for vent pipe.
A quick step by step guide on how to flash a metal roof.
How to install flashing around a vent pipe five steps to replace a vent pipe flashing 1.
Be sure to clean the outside of the pipe from old caulk that could be in the way of the flashing.
Begin by removing the shingles at the affected area and removing old flashing if present.
Open valleys have metal flashing to protect this critical area of the roof.
Apply the last row of shingles that is just below the vent pipe as shown in figure 1.
The neck of the flashing should fit snugly around the pipe.
Remove the old and clean the pipe.
Apply the roofing felt on the roof cutting a hole for the vent pipe.
Carefully remove all the shingles from the flashing.
Next use a reciprocating saw with a rough in blade to cut the out the marked template.
How to flash a metal roof.
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.
Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof.
1 remove nails holding down shingles above the pip.
After selecting an area to install from inside the building square the template between the roof rafters and outline with a marker.
To make the installation easier you can turn the flashing as you lower it in place.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Hammer the nails into the top and sides of the flashing.
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.
Continue the next row of shingles cutting a hole for the vent pipe.
Figure 1 install shingles just below vent pipe.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Slide the new flashing over the vent pipe and under the shingles above the pipe.
