Polyurethanes have the broadest range of any product group, but they tend to combine toughness and flexibility with adhesive properties. This article examines the chemistry behind these coatings, seeking to give specifiers the information needed to select the right material for a project.
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Initially, water vapor diffusion was seen as the likely culprit for condensation problems; designers and consultants spent hours running and analyzing wall assemblies using the dewpoint method.
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Some modern architectural designs use newer materials and metal panel assemblies for roofing applications, many of which are not intended to be used as roofing and, therefore, may not be well-suited for it.
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The Cigas Machine Shop in Pottstown, Pennsylvania, is located in a building previously owned by the Bethlehem Steel Corporation, with parts of the structure dating back to the late 1880s.
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A transpired solar collector system utilizes perforated metal wall cladding to heat outside fresh air via sunlight. This technology can help reduce winter heating costs by approximately 30 percent, qualify for government grants and incentives for renewable energy, and generally has a payback of three to eight years.
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Approved drop-out ceiling panels can be installed beneath fire sprinklers. When exposed to heat from a small fire, drop-out ceiling panels soften, distort, and fall from ceiling grid. Heat from the growing fire activates sprinklers that, unimpeded by panels that have dropped out, controls or extinguishes the fire.
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Located in Evanston, Illinois, Northwestern University’s Engineering Life Sciences infill is a bright, multi-disciplinary space with collaborative gathering areas and cutting-edge classrooms, laboratories, and research rooms. The expansion rises five stories, bridging two of the campus’ existing building wings.
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Thermoformed plastic ceiling panels and tiles have unique features that make them practical for many design and construction challenges. They can be installed beneath fire sprinklers and are not affected by moisture, support indoor air quality (IAQ), and offer noise reduction.
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Light-emitting diodes (LED) are becoming increasingly popular due to the ever-present emphasis on reducing project costs. With numbers of LED installations rising, it is imperative that architects, engineers, and specifiers are able to evaluate the benefits of LED technology.
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The current library in Farmington, Illinois—a 278-m2 (3000-sf) building dating back to 1906—is finally being replaced with a sustainable, sound-resistant facility employing insulated concrete forms (ICFs).
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