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Project Leader
Trevor Nightingale
Phone: 613-993-0102
Fax: 613-954-1495
Email: Trevor.Nightingale@nrc-cnrc.gc.ca
Sound Insulation in Japanese and Korean 2x4 Multi-Unit Buildings
Objectives
To consolidate information on building practices and materials in Japan and Korea, and prepare a follow-on project to encourage wood-frame house construction in those countries.
Background
Export of Canadian lumber to Japan and Korea is impeded in part by the acoustical requirements of performance indication systems and building codes in those countries, which specify apparent sound insulation between units (the sum of direct transmission and all flanking paths), and also include stringent requirements for control of low-frequency footstep noise. NRC-IRC's Guide for Sound Insulation in Wood Frame Construction, which provides design advice on details to manage such transmissions and impact sounds, cannot be directly applied in these countries because of differences in materials, building practice, and standardised impact sources. There is therefore a requirement for acoustical design details suitable for those markets.
Statement of Work
- Determined constraints on acoustical design in the Korean and Japanese housing markets imposed by building practice and materials
- Evaluated five constructions in the NRC-IRC Flanking Sound Transmission Facility and used the results to assess the difficulty of meeting Japanese and Korean minimum code requirements as well as various grades of the national voluntary home quality indication system of each country.
- Established the scope of a follow-on project to deliver acoustical design details that would be accepted in those markets
Outcomes
- A report identifying the technology needed to meet Japanese and Koreas standards and quality indication systems was delivered to the Partner.
- A follow-up project to create the needed technology and transfer it to builders, engineers, and architects will begin in early 2008.
Partner
The Council of Forest Industries (COFI)
Start/Completion Dates
This project began in December 2006 and was completed in March 2008.
