One of the homes on my street built around 2000 had repeated roof leaks in the same location. The design of the roof is such that one roof plane drains right up against a vertical wall. On top of that, the roof was not step flashed like it should have been.
Warranty sent out contractors a number of times and their solution was always to apply more butyl caulk. The right solution was to step flash that area, although the roof should not have been designed that way in the first place. Up north, where a roof drained up against a brick chimney, a cricket was built to prevent that situation.
|