Roof Flashing Vent Pipe Installation

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.

Inside diameter black new construction or reroof thermoplastic vent pipe roof flashing model pb 312 4bk 19 97 19 97. 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. Painting the pipe and flashing will give you a consistent look across the roof so the pipes don t stand out as much. Roofing nails per side photo 2.

Continue the next row of shingles cutting a hole for the vent pipe. 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. If you intend to install or repair roof flashing then you ll need to pay attention to size.

Figure 1 install shingles just below vent pipe. Installing an extra rubber gasket over top of the new pipe flashing will prolong the useful life of that pipe collar. Add a large bead of caulk in a half moon shape around the flashing and put the shingles back in place. Get free shipping on qualified vent pipe flashing or buy online pick up in store today in the building materials department.

Seal the underside of the flashing as shown below. Slide the new flashing over the vent pipe and under the shingles above the pipe. Use one roofing nail in each corner of the flashing to secure it to the roof. Roof flashing installation instructions 1.

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. You can also caulk around the top of the gasket. 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. Select appropriate size flashing for each vent pipe through roof.