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 a 75-mm (3-in.) thick mortar-set...
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When properly specified and executed, the preconstruction performance mockup of an enclosure assembly can offer several benefits to any project. Most notably, the mockup provides project teams the opportunity to observe, evaluate, and refine the design, fabrication, and installation sequencing of the enclosure assemblies and corresponding interface conditions.
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When repointing mortar joints in an existing structure, successful long-term performance depends on a number of factors. A lack of understanding of substrate materials and conditions, insufficient joint preparation, less than adequate skill or care during mortar installation and curing, and an overly limited repointing scope can lead to...
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Originally acclaimed for being lightweight, economical, and efficient as compared to traditional stone, terra cotta was a common façade element on many late-19th and early 20th century commercial buildings.
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A few years after construction, a mid-rise building in a freeze-thaw climate exhibited problems with the cast stone coping units atop parapet walls at balconies and the roof perimeter.
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Where masonry needs to be coated, breathability, durability, and adhesion are some of the important considerations in selecting the coating system and developing project specifications.
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Replacement windows present challenges in terms of installation and anchorage, especially in ensuring resistance to air and water infiltration and providing reliable structural support.
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Curtain wall installation requirements, means, methods, and materials continue to evolve, yet many of the basics remain the same. Most curtain walls have similar installations, but differ on size, location, alignment, and anchorage of components. Here are some of the critical areas to focus on for a successful curtain...
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Water leakage through the exterior wall was reported at a 30-year-old, one-story commercial building in the Midwest. The building had been constructed with concrete masonry unit (CMU) bearing walls clad with brick masonry veneer, and steel open-web joists supporting a steel roof deck. The portion of the building experiencing...
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Dutchman repairs are used to permanently repair cracked, spalled, or deeply eroded stone units. The installation of a dutchman repair begins with the preparation of the substrate by cutting, chipping, and grinding the damaged portion of the parent stone to a squared-off profile.
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