Airborne vs Impact Sound : A Complete Guide to Acoustic Solutions for Your Home or Condo




Have you ever wondered why, even with thick condo walls or soundproof curtains, noise from upstairs or neighboring rooms still disturbs you?

That’s because “noise” in buildings comes from different sources. If the problem isn’t addressed correctly, not only will it not be fully resolved, but it can also lead to unnecessary expenses.

Today, we’ll take a closer look at the differences between two types of noise based on international standards, so you can choose the right materials for your renovation or construction with confidence.





1. Airborne Sound (sound transmitted through the air) – ISO 717-1

This type of noise travels through the air as its medium. When sound waves hit a wall or ceiling, they cause the surface to vibrate and transmit the sound to the other side.

Examples: conversations, TV noise, music, or barking pets
Key value to check: Rw (Weighted Sound Reduction Index) — the higher the value, the better the material is at blocking airborne sound
Solution: improve wall performance by using lightweight wall systems with air gaps, or by adding sound insulation within the wall structure




2. Impact Sound (structure-borne noise from impact) – ISO 717-2

This is the “number one enemy” for condo living. It’s caused by vibrations directly transmitted into the building structure, allowing sound to travel farther and often louder than expected.

Examples: footsteps (especially heel strikes), dragging furniture, or objects dropping on the floor

Key values to check:

  • Ln,w — the lower the value, the better (meaning less sound is transmitted)
  • ΔLw (Delta Lw) — the higher the value, the better it absorbs impact vibrations
Solution: the simplest and most effective approach is choosing flooring materials with impact sound absorption properties (Acoustic Flooring)




Upgrade your existing flooring to a sound-reducing solution with Armstrong Flooring Sensation Plus 
If you’re looking for a one-step solution to effectively solve impact noise problems, choosing vinyl flooring with a built-in acoustic backing is the answer.

Sensation Plus is specifically designed as an acoustic solution:

- International standard: Tested in accordance with ISO 717-2
- Proven performance: Reduces impact sound by up to 18 dB—turning loud footsteps into a much quieter, more peaceful environment
- Special structure: Built-in sound-absorbing layer, no need for additional underlayment
- Stylish design: Suitable for homes, condominiums, and office projects that require effective noise control



If you’re interested in vinyl flooring solutions, feel free to contact us for more information 

LINE : @vispac or Click
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