Tag Archives: Division 09

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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Best practices for specifying resinous flooring systems

There are two flooring chemistries that have both existed in the United States for more than 15 years but are rarely specified relative to their epoxy counterparts. Urethane cements and methyl methacrylate (MMA) have already been established as viable resinous flooring solutions for a variety of challenges. Urethane cements are one of the best solutions for resisting thermal shock from steam, grease, and other hot contaminants, while MMA can accept a fresh topcoat at any future time without requiring any mechanical preparation.

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