Specifying architectural zinc

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Architectural zinc (titanium-zinc alloy, rolled zinc, zinc strip) is a soft, natural-weathering metal that has been used for centuries in various roof applications. Its value reaches far beyond beauty and durability. Following ‘zinc-appropriate’ design, a quality metal roof specification will not follow a standard painted metal specification, but instead cover issues unique to this material. In some cases, prescriptive requirements for the material quality, technical support, panel profile, installer qualifications, and detail quality will be necessary.

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People Who Work in Glass Houses: Sound masking for modern conference rooms

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Privacy has all but vanished from the modern glass conference room and from much of the open-plan commercial office space. While additional frosting, static films, or vertical blinds can return some small measure of visual privacy, restoring speech privacy through acoustic treatment takes more knowledge, finesse, and careful specification. Acoustic treatment, after all, is not really ‘sound-proofing’ or ‘noise-cancelling.’

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Specifying and achieving a level composite steel floor

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Composite steel assemblies are an efficient and popular structural option for floor construction. Figure 1 shows a typical assembly, consisting of a steel beam, metal deck, concrete slab, and shear connectors. The composite action between the steel beam and concrete provided by shear connectors creates the composite properties that make the system a very stiff and strong structural element.

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