#Japan #Okayama #DAIKEN #CLT #Acoustic Lab

Introduction

In a significant development for the building materials industry, DAIKEN Corporation has inaugurated its specialized acoustic laboratory, affectionately dubbed the "Sound Environment Laboratory" or "Oto Labo." This state-of-the-art facility is located within the premises of the Okayama Factory in Okayama City. It represents a pioneering step forward, focusing on the importance of sound quality and comfort in architectural design. On November 13, the company held an opening ceremony attended by approximately 40 guests, including the Mayor of Okayama City, Mr. Omori, and various officials from the prefectural office.

Purpose of the Laboratory

DAIKEN's initiative aligns with its long-term vision, "TryAngle2035," which aims to create comfortable environments for all individuals and spaces over the next decade. With an increasing focus on sound environment solutions, the new laboratory will play a central role in research and development initiatives aimed at improving acoustics in buildings. The lab's goal is not only to advance technology but also to drive innovation in the development of high-performance building acoustics products.

Facility Overview

Configuration of the Laboratory

The "Oto Labo" is designed to measure the fundamental acoustic performance of architectural materials and structures. It includes several specialized rooms:

• - Reverberation Room: This room is designed with concrete finishes to enhance sound resonance, making it ideal for studying reverberation characteristics.
• - Anechoic Room: Encased in unique sound-absorbing materials, this room is optimized to minimize reflections and echoes, allowing for precise acoustic measurements.
• - Box Test Room: This space facilitates the assessment of impact noise isolation performances in multi-story residential buildings.
• - Wood Structure Experimental Room: Focusing on the increasingly popular Cross-Laminated Timber (CLT), this room examines how wood materials can be utilized to enhance acoustic comfort in structures.

With high-performance experimentation and measurement equipment installed in each of these specialized rooms, the "Oto Labo" is equipped to conduct various sound-related tests and performance evaluations.

Investment and Infrastructure

DAIKEN has invested approximately 1.3 billion yen into the construction of this groundbreaking lab, which encompasses a total floor area of 926 square meters on a site spanning 1,170 square meters. The design and construction were handled by Naikai Architect Co., Ltd. and Japan Acoustic Engineering Co., Ltd., ensuring that the facility meets the highest industry standards.

Features of the Laboratory Rooms

Two reverberation rooms and an anechoic room are connected, allowing for concurrent testing of sound insulation performance by placing test samples on the wall separating the two rooms. Notably, the construction of a dedicated 1,000 square meter acoustic laboratory is a first in the building materials sector. Furthermore, the incorporation of CLT for building the sound measurement wood experimental room marks another industry-first achievement.

Conclusion

The establishment of the "Oto Labo" not only reinforces DAIKEN's commitment to improving sound environments but also positions the company as a leader in acoustic testing within the building materials industry. The innovative research conducted in this laboratory promises to contribute significantly to new technologies and materials designed to enhance the acoustic comfort of various spaces. As sound becomes an essential aspect of architectural design, DAIKEN aims to spearhead solutions that ensure lasting comfort in our living environments.