This is worst when there is a door or a window below and water can seep behind the trim.
Roof flashing issues.
Faulty roof flashing can be another reason why your roof is leaking and should be repaired.
You might not notice it for years but eventually rot will destroy sheathing and framing.
The defect consists of the improper integration of the roof underlayment and the metal drip edge collectively referred to as the eave flashing figure 13.
This article is an addendum to flashing roof wall details live link just below adapted from best roofing practices.
Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing.
Some common causes are.
Incorrect fastening to the surface.
How to repair roof flashing small holes or corroded spots in flashing can be easily repaired.
An insufficient number of base flashing piles.
Water damage over time can.
Kick out flashing is critical where a roof edge meets a sidewall.
Based on the author s experience this is one of the most common residential roof flashing defects of all time.
Without it roof runoff flows down the wall and possibly into the wall.
Problem area number 3.
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