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