Sound Insulation
Articles on Sound Insulation — from Han Acoustic.
Industrial Noise Control: Protecting Workers and Neighbours
Industrial noise control protects workers (OSHA/NIOSH/EU limits) and neighbours (EU 2002/49/EC) via the hierarchy of controls — enclosures to façade insulation.
“Acoustic Doors: The Weakest Link in Any Soundproof Wall”
Why a hollow-core door undoes an STC 50 wall, what makes an acoustic door work, and how to match a door set…
“Footfall Noise From the Floor Above: How to Stop Impact Sound”
Hearing every footstep from upstairs? Learn why impact noise is hard to stop, how IIC/L'nT,w ratings work, and which fixes actually work.
“STC vs. Rw vs. NIC: How Sound Insulation Is Actually Rated”
STC, Rw and NIC explained and compared — US vs. European lab ratings, why field NIC runs ~10 points below lab STC,…
Sound Absorption vs. Soundproofing: Why They Are Not the Same Thing
Absorption reduces echo inside a room; soundproofing stops sound reaching the next one. Learn which one your space actually needs.
“Airborne vs. Impact Noise: The Two Problems Sound Insulation Must Solve”
Airborne and impact noise are different physical problems needing different fixes. Learn STC/Rw vs IIC/L'nT,w and how to diagnose and solve each.
Sound Insulation Building Regulations: What the Codes Actually Require
What US IBC and UK Part E actually require for sound insulation between rooms — STC/IIC vs DnT,w/L'nT,w, minimums vs comfort, and…
Occupational Noise Exposure Limits: OSHA, NIOSH and EU Rules Explained
OSHA PEL is 90 dBA, NIOSH REL is 85 dBA, EU limit is 87 dB(A). Compare exchange rates, action levels and what…
“Guests Hearing the Room Next Door? How to Fix Hotel Sound Transfer”
Bad reviews about neighbour noise usually trace to one weak link, not the wall. How to diagnose the real transmission path and…
“Hotel Sound Insulation: What STC Rating Do Guest-Room Walls and Doors Need?”
The STC scale explained, the STC 50 code minimum for hotel guest rooms, why premium brands target STC 55-60, and the weak…
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