The water entry point may not always the same as where the water drips.
Roof vent boot leak.
Replace any missing or rotted siding above the step flashing on dormers.
This old house general contractor tom silva shows how to create a watertight seal around a vent pipe.
Across the joists lay a.
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If your roof was constructed with cheap quality vent pipe boots these will likely need more maintenance and replacement over the lifetime of your roof.
Leakage due to improper installation of the vent pipe boot would present as water stains dark spots and or wet areas on the under side of the roof sheeting.
Periodic maintenance can prevent roof leaks.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.
A vent pipe boot can leak either from improper installation or more likely from a split in the rubber where it fits around the pipe.
When the vent pipe boot cracks your roof is open to a water leak.
Make a temporary patch.
Vent pipes are roof maintenance items that should not be overlooked.
Quick fix from inside contain dripping water.
Find the water entry point.
The immediate thing to do is to contain dripping water from the leak.