Anonymous (not verified) | Mon, 11/04/2013 - 16:58

The guy who installed my new roof said you shouldn't need to caulk flashing. (For a variety of reasons, I should not have hired this guy. He should not be allowed to be in business.) At the first heavy, windy rain, the roof leaked. I'm sure the water ran between the flashing and the shingles until it got past the flashing and entered the house (through nails holes?). This flashing is between the lower roof and a vertical wall coming down from the upper roof in a split-level house. Shouldn't I just caulk along this intersection of wall and roof?

The upper and lower roofs are at right angles. The wall coming down between them comes straight down the lower roof and then has a 90ยบ angle so there is a section of the wall that is parallel to the peak of the lower roof. This means there is an exposed upper edge of shingles against the flashing at this "intersection" of wall and roof. With no caulking, isn't it logical to assume that at some point, the wind will blow water up to the top of the shingles and then the water will run down underneath the singles?

Thanks

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Jay performs inspections Monday through Saturday, throughout Northern Virginia, from his office in Bristow to Leesburg and Centreville, to Great Falls and Vienna and everywhere in between!