Non-Compliant Flashing at Window Head
Adhered Thin Brick Veneer Defect Results in Significant Water Damage
Fiebig Architecture was hired to determine the cause of water intrusion in a wood-framed commercial building suffering from widespread leaks.
EXPERT OPINION
The building code requires flashing not only to prevent water from getting into exterior wall systems, but also to provide a means of drainage for any moisture that does infiltrate behind the wall cladding. In this case, the window head flashings were sealed shut, preventing moisture that soaked through the moisture-permeable mortar and thin brick from getting out of the wall assembly. Over time, the buildup of moisture in the walls soaked through the wood-framed and -sheathed wall, resulting in leaks into the interior of the building.