Despite efforts at coordination during design and construction, lack of accommodation or understanding of the accumulative effect of dimensional tolerances during the installation of one or more cladding components continues to occur.
In winter, we become especially aware of the effects of exposure on everything around us. Cyclic wetting and drying, freezing and thawing, dramatic changes in temperature, wind, and cold all contribute to weathering and deterioration of the built environment’s elements (and, sometimes, its occupants).
Once an exterior wall assembly mockup has passed performance testing—usually not without some adjustments—and the products (e.g. windows, curtain walls, and cladding panels) are released for fabrication and installation, the design/construction team faces a new challenge: ensuring modifications or improvements identified during this process are integrated into fabrication.