Articles tagged “partition”
2 articles covering partition in acoustic engineering and building design.
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STANDARDS13 min read
ISO 717: Sound Insulation Rating Systems (Rw, STC, Dnt,w) Decoded
Decode ISO 717 sound insulation ratings — how Rw, STC, DnT,w, and L'nT,w are calculated, why lab and field values differ, and how to avoid the flanking transmission trap.
March 20, 2026
ISO 717Rw
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TUTORIALS18 min read
Understanding Sound Insulation: STC, Rw, and Why Walls Don't Block All Frequencies Equally
STC (Sound Transmission Class) and Rw (Weighted Sound Reduction Index) both rate how well a wall blocks sound — but they use different standards, different frequency ranges, and can give different results for the same wall. Here is what each rating means, how they are measured, and which one applies to your project.
March 14, 2026
STCRw