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.
Roof flashing vent pipe installation.
Add a large bead of caulk in a half moon shape around the flashing and put the shingles back in place.
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.
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Put one nail in the bottom edge with a dab of caulk under it to seal the.
You can also caulk around the top of the gasket.
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Apply the last row of shingles that is just below the vent pipe as shown in figure 1.
Apply the roofing felt on the roof cutting a hole for the vent pipe.
Slide the new flashing over the vent pipe and under the shingles above the pipe.
Seal the underside of the flashing as shown below.
Select appropriate size flashing for each vent pipe through roof.
Continue the next row of shingles cutting a hole for the vent pipe.
Inside diameter black new construction or reroof thermoplastic vent pipe roof flashing model pb 312 4bk 19 97 19 97.
Figure 1 install shingles just below vent pipe.
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.
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.
Use one roofing nail in each corner of the flashing to secure it to the roof.
