Damage caused by improper window installations, specifically flashing details that allow water infiltration, routinely tops builders' list of callbacks. And with the average 2,300-square-foot house containing 19 windows, there’s ample potential for problems ranging from rot to mold and condensation, according to this BUILDER article. Not to mention damage to your reputation as a quality builder and a hit to your already razor-thin profit margin.
Many of these problems can be abated with correct flashing installation. Here, in a series of videos, Long Island, N.Y., carpenter Peter Heard details how to integrate house wrap and flashing to better prevent leaks.