Improper Flashing Installation at Vent Pipe Roof Penetration.

During home inspections, 4 point inspections and wind mitigation inspections, I routinely encounter the same deficiency: plumbing stack (pipe) vents improperly flashed.  This is true even on new roofs. As seen above, the flashing on the top side should be overlapped by shingles, but it should overlaps the shingles on the downhill side. The following short video should make this crystal clear.

Improper Vent Pipe Roof Penetration Flashing Video

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