Specifying suspended acoustic baffles

While many design options exist (e.g. baffles, banners, islands, and clouds), the use of NRC rating as a performance metric does not. The sound-absorbing performance of these individual, hanging acoustic objects is not quantified using NRC. Instead, their absorption is characterized using sabins, the unit of sound absorption.
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Demystifying fire-retardant-treated wood specifications

A step-by-step guide to writing a strong specification for generic fire-retardant-treated wood (FRTW) for specifiers. The history of FRTW, how it is manufactured, and how it compares to steel, concrete, and painted/coated wood products helps create a context to better understand when to use specific products in specific situations....
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