You need to gently pry up the overlapping cap shingle next to the cap you want to replace.
How to replace a roof vent cap.
How to replace a rooftop cap 1.
There are a number of key steps you need to take to avoid mucking this part up.
Works for any size pipe.
This is an area of the roof which requires extra care and skill.
Carefully pry up the shingles around the roof jack using a flat pry bar.
Hammer a roofing nail on each side of the shingle five inches from the bottom edges and one inch from the side edge.
Video turorial on how to change out a plumbing vent boot.
Since making this video we replaced these caps with 360 siphon rv roof vents which are awesome.
If you need to replace some of the caps here s how to do it.
Slide a new roof jack sized to fit your vent pipe.
To replace a damaged roof vent jack on your home.
Back about 1 inch you ll see a roofing nail.
Cut and bend a shingle to conform to the shape of the peak of the roof.
Remove any roofing nails and slide out the shingles.
Grip the cap with both hands and attempt.
Check out the updated video here.
Slide the pry bar under the nail head and gently pry the nail.