SOLUTION

WJE engineers performed a visual condition survey of the existing stucco facade and roof systems, inspected underlying conditions via exploratory openings, and conducted water leakage testing. The engineers found systemic problems with the design and installation of the stucco cladding. Given the extent of the problems, it was not practical to repair the existing system in a manner that would provide a high degree of confidence that future leakage would not occur. Based on this, the owners opted to remove and replace the existing stucco system and asked WJE to prepare drawings and specifications for this work. The design included a replacement stucco facade, installed as a drainage system, with effective flashings and an air barrier; removal and reinstallation of all windows with proper flashings; water testing of reinstalled windows and new backup wall construction (air/moisture barrier) to ensure integrity prior to stucco application; and installation of collectors, downspouts, and underdrains at roof scuppers to evacuate water from the building perimeter. WJE also provided construction period services, including water testing, to verify that the entire system performed as required.