Bend back the roofing shingles above and on the two sides of the vent pipe with a pry bar. Do not pry back the shingle beneath the vent pipe.
Slide the new flashing over the vent and into position. Install the flashing under the top and side roofing shingles, but lay it above the roofing shingle that lies below the vent pipe. Turning the flashing as you lower it into place will make the installation easier. Be sure the neck, or hole, of the flashing fits snugly around the vent pipe.
Hammer the roofing nails into the top and sides of the flashing sleeve, making certain the top and side roofing shingles are bent back so as not to nail through the shingles. Seal the nail heads with roofing cement.
Hammer the roofing nails into the bottom edge of the flashing, making sure the flashing lies on top of the shingle located just below the vent pipe. Seal the nail heads with roofing cement.
Seal around the edges of the flashing with roofing cement.
Things You Will Need
- Work gloves
- Pry bar
- Putty knife
- Roofing nails
- Roofing cement
- While you are up on the roof, cap the roof vent with hardware cloth to keep out animals and debris. Apply the cloth down over the sides of the pipe, and glue it in place with leftover roofing cement.