Articles tagged “stc”
6 articles covering stc in acoustic engineering and building design.
Acoustic Treatment vs Soundproofing: Why Most People Get This Wrong
The definitive explanation of the difference between acoustic treatment (controlling sound within a room) and soundproofing (blocking sound between rooms). Covers the mass law, decoupling, the 1% rule, STC vs NRC, and when you need each approach — with cost comparisons and worked examples.
Building Acoustics vs Room Acoustics: What's the Difference?
Building acoustics blocks sound between rooms using mass and decoupling (STC/Rw). Room acoustics controls sound within a room using absorption (RT60/C80). Here is when you need each, how they interact, and the standards that govern them.
LEED AP: Acoustic Performance Credit Study Guide — EQ Credit Requirements Explained
Complete study guide for LEED v4.1 EQ acoustic performance credit covering NC curve requirements, STC/IIC thresholds, HVAC noise criteria, documentation evidence, and key differences from WELL. Includes practice questions with explained answers.
Soundproofing vs Acoustic Treatment Cost — You're Probably Buying the Wrong One
Soundproofing (stopping noise entering/leaving) costs £200–£500/m² of wall. Acoustic treatment (fixing echo inside a room) costs £15–£80/m². 70% of DIY acoustic buyers purchase the wrong product. Here is how to know which you need.
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.
STC vs Rw: American vs European Sound Insulation Ratings — Same Wall, Different Numbers
STC and Rw both rate how well a wall blocks sound, but they use different frequency ranges, different reference curves, and can rate the same wall differently by 2-5 dB. For international projects, knowing the conversion matters. Here is the complete comparison with worked examples.