Figure 1 install shingles just below vent pipe.
New shingles around roof vent.
Otherwise replace it with a new one that will fit the hole or pipe.
Plumbing vent boot flashing.
Along the rakes install a new j channel drip edge which wraps around the old rake flashing and starter courses.
Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof.
The height of the boot forces water to run around the vent.
Cover the entire flange with shingles to integrate it better into the roof.
Slip a flat bar under the edge of the vent flashing and pop the nails up photo 1.
Continuous or individual soffits.
Slide the new flashing over the vent pipe and under the shingles above the pipe.
Use some asphalt roof cement under the cut shingle and around.
An aluminum ridge vent has a mushroom shaped profile combined with a wide flange on both sides that sits on top of the roof shingles.
Continue the next row of shingles cutting a hole for the vent pipe.
If more than about 35 of your roof is going to need repair due to wind or hail especially if it s already 12 years old the cost effective decision might be to replace it all.
This aluminum cap is the finished product and does not require.
Vent flashing is a cylindrical piece of flashing that fits right around the vent.
Apply the roofing felt on the roof cutting a hole for the vent pipe.
Press new shingles onto the caulk and use nails at the top of each shingle to fully secure them to the roof.
A shingle over vent is installed over the ridge of a roof and is covered over by asphalt shingle caps that match the surrounding roof shingles.
Leave the old valley flashing in place and install new over it.
If you damage shingles while doing this repair the shingles see next step.
Place a line of roofing tar or caulk on top of the vent s flange or its bottom flap using a caulk gun.
Glue down shingles to cover the bottom of the vent.
Apply the last row of shingles that is just below the vent pipe as shown in figure 1.
However on the roof of my outbuilding and the roof of my parents house i noticed that the shingles at the bottom edge of the vent are filled in over the lower part of the flange cut around the profile of the vent.
To level out an existing asphalt shingle roof rip down reduce the height of two courses of shingles as shown in the drawing below.
Soffit vents are one of the most popular intake vent styles.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
The shingles are installed over the base or boot.
