Primary seals are not secondary

FAILURESDeborah Slaton, David S. Patterson, AIA, and Jeffrey N. Sutterlin, PE A recently completed multistory building was experiencing significant water leakage directly below the interfaces of rising walls at setback roofs during prolonged wind-driven rain events. The building was principally clad with 150-mm (6-in.) thick architectural precast concrete (APC) panels finished by the fabricator with […]