SOLUTION

WJE performed a close-range survey and assessment of representative sections of the above-grade exterior wall and roof systems and assemblies in support of the ongoing cleaning and refurbishment. Material samples were removed during the survey for laboratory analysis. In addition, WJE performed mock-up in situ cleaning studies to identify the most responsive method of cleaning for the stone veneer, painted metal framing, spandrel panels, and glass surfaces.

Field testing for water penetration resistance was performed at representative locations throughout the property. Flood testing and hose testing were both successful in recreating leaks at observed water staining locations. Infrared thermography was applied informally to gain a general understanding of the potential thermal bridging and air leakage at the exterior wall assemblies. Inspection openings were also made at the roof level to observe concealed conditions.

WJE surveyed interior spaces of the property for evidence of bulk rainwater penetration, condensation, and air leakage. In addition, WJE surveyed the installed inverted roof membrane assembly and associated perimeter flashing, joint sealant, and mastic at representative locations on the outdoor roof areas. The results from this survey were used to develop a range of recommendations for light refurbishment, routine maintenance, and repair.