Proceedings of the 54th International Congress and Exposition on Noise Control Engineering

ACOUSTIC METAMATERIAL CEILING FOR FLOOR IMPACT SOUND ISOLATION AND MEASUREMENT METHODS FOR REDUCTION PERFORMANCE

Published in 25/09/2025 - ISBN: 978-65-272-1573-8

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Paper Title
ACOUSTIC METAMATERIAL CEILING FOR FLOOR IMPACT SOUND ISOLATION AND MEASUREMENT METHODS FOR REDUCTION PERFORMANCE
Authors
  • Jeongho Jeong
  • Junhyuk Kwak
  • Jongjin Park
  • Hyojin Lee
Modality
Onsite-Oral
Subject area
11.1. Requirements, Classification Schemes & Standards in Building Acoustics
Publishing Date
25/09/2025
Country of Publishing
Brazil | Brasil
Language of Publishing
en-US
Paper Page
https://www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1074524-acoustic-metamaterial-ceiling-for-floor-impact-sound-isolation-and-measurement-methods-for-reduction-performance
ISBN
978-65-272-1573-8
Keywords
Acoustic metamaterials, soundproof ceiling, impact sound isolation
Summary
The impact sound isolation performance of newly constructed residential buildings has been measured and verified since 2022 to enhance sound insulation quality. The recommended impact sound isolation performance for residential buildings is set at 49 dB for tapping machine and rubber ball impact sounds. If the measured level exceeds 49 dB, corrective construction is required. Consequently, there is a growing demand for materials and methods that can effectively improve the impact sound isolation performance of existing floor impact sound insulation structures. Acoustic metamaterial ceiling materials have been developed as lightweight alternatives to conventional ceiling structures. When applied in residential units under construction with floating floor structures, these materials reduced the rubber ball impact sound level by 4 dB compared to the existing structure. Additionally, their sound reduction performance was approximately 2 dB higher than that of gypsum board finishing materials applied to conventional ceilings. Despite these advancements, there is no standardized method for quantitatively assessing the impact sound isolation performance of ceiling materials and structures in residential spaces. Based on the existing measurement methods for floor impact sound isolation performance of finishing material, KS (Korean Standard) has established a method for evaluating the impact sound reduction performance of ceiling materials.
Title of the Event
Inter-Noise 2025
City of the Event
São Paulo
Title of the Proceedings of the event
Proceedings of the 54th International Congress and Exposition on Noise Control Engineering
Name of the Publisher
Even3
Means of Dissemination
Meio Digital

How to cite

JEONG, Jeongho et al.. ACOUSTIC METAMATERIAL CEILING FOR FLOOR IMPACT SOUND ISOLATION AND MEASUREMENT METHODS FOR REDUCTION PERFORMANCE.. In: Proceedings of the 54th International Congress and Exposition on Noise Control Engineering. Anais...Sao Paulo(SP) WTC Events Center, 2025. Available in: https//www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1074524-ACOUSTIC-METAMATERIAL-CEILING-FOR-FLOOR-IMPACT-SOUND-ISOLATION-AND-MEASUREMENT-METHODS-FOR-REDUCTION-PERFORMANCE. Access in: 28/04/2026

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