Applied Spaces / System Partition

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Office Acoustics Explained: How to Read Rw Values and Laboratory Test Data

Rw, the weighted sound reduction index calculated to ISO 717-1, is a single-number rating of how well a wall or door blocks airborne sound. The higher the number, the better the insulation. Reading it well means checking three things: whether the figure is laboratory tested rather than estimated, where the weak points such as doors and junctions sit, and how laboratory values relate to on-site performance.