Acoustic Coatings—A Discreet Way to Control Acoustic Environment

Frontiers in Built Environment

Tapio Lokki¹  Marko Makkonen²  Tuomas Hänninen²  Jose Cucharero³ 

[1] Aalto Acoustics Lab, Department of Signal Processing and Acoustics, School of Electrical Engineering, Aalto University, Espoo, Finland;Department of Computer Science, School of Science, Aalto University, Espoo, Finland;Lumir Oy, Vantaa, Finland;Lumir Oy, Vantaa, Finland;Aalto Acoustics Lab, Department of Signal Processing and Acoustics, School of Electrical Engineering, Aalto University, Espoo, Finland;

关键词: acoustic coating;    architectural acoustics;    carbon sink;    bio-based acoustic materials;    acoustic measurements;    acoustic design;   

DOI  :  10.3389/fbuil.2021.665332

来源: Frontiers

【 摘 要 】

Acoustic comfort is directly related to enhanced well-being and performance of people. A typical challenge faced by architects and acousticians is to achieve adequate acoustics while maintaining the aesthetics of the space and reducing the visual aspects of acoustic materials and elements. In this study, we present a biofiber-based acoustic coating as a feasible solution to improve acoustic environments while preserving the aesthetics of spaces. An acoustic coating is a thin layer of absorption material, but the coating can be sprayed on other sound absorbing structures to make it more effective on a wide frequency range. In addition, this biofiber-based coating acts as a carbon sink during its operating life, thus reducing the carbon footprint of the building. Therefore, the coating is sustainable and is an environmental friendly solution. The absorption properties of the biofiber-based coating are demonstrated in the present study with three case studies, which all had demanding requirements to conceal the acoustic structures.

【 授权许可】

CC BY