Plumbing Vent Flashing
I find cracked and leaking plumbing vent flashings every week during my home inspections. I always wonder why the home building industry can’t make a vent flashing that lasts as long as the shingles. On very steep roofs where the up slope side of the flashing is pinched, I can understand why the flashings deteriorate so quickly. Very few roofs are that steeply pitched. With all the advances in building materials over the last couple of decades, there should be a plumbing vent flashing on the market that lasted for as long as the shingles.