Testing+Evaluation Projects and Assignments
112 East 83rd Street
New York, NY
Leak investigations proceed from lower to upper surfaces and joints until the source of water penetration is found. An interesting aspect of this investigation of a leak into an Upper East Side apartment from a patio above was that all patio elements had observable damage and were likely candidates. The patio roof was flooded, an HVAC penetration and door joint tested with a hose nozzle, then the parapet wall and flashing were tested with a spray bar, but it was the coping joint that proved to be the source of the leak.