Figure 1 install shingles just below vent pipe.
Roof flashing vent pipe installation.
Apply the last row of shingles that is just below the vent pipe as shown in figure 1.
How to find a leak.
Slide the new flashing over the vent pipe and under the shingles above the pipe.
Put one nail in the bottom edge with a dab of caulk under it to seal the.
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The flashing for your plumbing vent needs to be large enough to surround the vent so it should be just wider than the vent s diameter.
Roof flashing installation instructions 1.
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Apply the roofing felt on the roof cutting a hole for the vent pipe.
Now that the old flashing is gone you can slide the new flashing over the pipe vent and maneuver it under the shingles above the pipe.
Roofing nails per side photo 2.
Installing an extra rubber gasket over top of the new pipe flashing will prolong the useful life of that pipe collar.
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.
You can also caulk around the top of the gasket.
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.
Select appropriate size flashing for each vent pipe through roof.
Seal the underside of the flashing as shown below.
Continue the next row of shingles cutting a hole for the vent pipe.
Painting the pipe and flashing will give you a consistent look across the roof so the pipes don t stand out as much.
