Gable ends are where a valley terminates into a roof’s surface, rather than running the entire length to the roof’s edge. They are quite common and add to the roof’s design. However, if not correctly detailed with flashings and sealants, the gable end is an area of concern. With the valley channeling large amounts of water to the gable end area there is an increased chance of seepage. In fact, it is roofing’s #1 repair area on all roof systems. Adding more sealant may stop the seepage for a year or so, but the only correct way to fix this area is by removing the flashings and installing them correctly. This will minimize the dependence on sealants, which will deteriorate over time.
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