Articles tagged “impact noise”
2 articles covering impact noise in acoustic engineering and building design.
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TUTORIALS9 min read
Impact Noise Floor Build-Up: ΔLw Improvement Calculation — ISO 717-2
Start with bare 150mm concrete slab (L'nT,w 78 dB). Add resilient mat, screed, and carpet step by step. Calculate ΔLw at each stage per ISO 717-2 with full IIC ratings.
March 18, 2026
impact noisefloor buildup
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GUIDES15 min read
IIC Rating Explained — Why Apartment Residents Still Hear Footsteps | AcousPlan
IIC 50 floors fail because the ASTM E492 tapping machine misses heel-strike energy below 100 Hz. Lab vs field FIIC gap table with 4 failure modes.
March 18, 2026
IIC ratingimpact noise