ER30A Acoustical Design Of Medium Density Housing
External ResearchReportER30 – A [2018]Acoustical Design of MediumDensity HousingMalcolm Dunn, Tessa Phillips, Grant Emms, Andrea Stocchero,Brian Mace, Mike Kingan, Michael Newcombe, Prue Fea and DavidFullbrookProject LR0514Marshall Day Acoustics, Scion, University of Auckland, EnovateConsultants, Jasmax, ECubed, funded by the Building ResearchLevy
Acoustical Design of Medium Density HousingCollaborative research project funded by the Building Research LevyFINAL REPORT 30 June 2017(Revision 1, March 2018)
BRANZ Research Project LR0514, June 2017Acoustical Design of Medium Density HousingREPORT INFORMATIONProject:Acoustical Design of Medium Density HousingCollaborative research projectfunded by the Building Research Levy 2016/2017Key ResearchersProject Lead / Malcolm Dunn-Marshall Day AcousticsTessa Phillips- Marshall Day AcousticsDr. Grant Emms and Andrea Stocchero- ScionProf. Brian Mace and Dr Mike Kingan- University of AucklandDr Michael Newcombe- Enovate ConsultantsPrue Fea- JasmaxDavid Fullbrook- ECubedReport compilerTessa Phillips- Marshall Day AcousticsJob number:BRANZ Job Number LR0514MDA Job Number 2016529AReport prepared for:BRANZ1222 Moonshine Rd, RD1, Porirua 5381, New ZealandPrivate Bag 50 908, Porirua 5240, New ZealandAttention:Kate Bryson and Anne Duncan at BRANZOriginal Submission30 June 2017This revisionMarch 2018DisclaimerThis report has been prepared for the benefit of the addressee(s) and solely for the purpose for whichit is provided. We do not accept any liability if this report is used for an alternative purpose from whichit is intended, nor to any third party in respect of this report. This report is not intended as detailedtechnical guidance for building projects, but a consolidation of resources and issues in the researcharea, for use in planning future research, policy and information dissemination. While every attempthas been made to ensure the accuracy of information and analysis provided, professional advice shouldbe sought for individual building project details. The full document with all attachments should bedistributed when sharing this document for clarity of scope and intention. Images may be subject tocopyright and should not be reproduced elsewhere without permission.Document version info:June 2017 – Version 1, Draft - first full compilation of research, circulated for comment30/6/2017 – Version 2, Final – final research as submitted to BRANZ.March 2018 – Version 3, Revision 1 - new project summary replacing original executive summary,minor editing corrections, some image changes/removals for public release, removal of full industrysurvey feedback (though full survey results in anonymised form may be requested from BRANZ).Pdf 1 of 2 contains chapters 1-7 and Appendices A -F. Pdf 2 of 2 contains Appendix GStudy report pdf 1 of 2, Version 3 - March 2018 RevisionPg 3
BRANZ Research Project LR0514, June 2017Acoustical Design of Medium Density HousingTABLE OF CONTENTSReport Information . 3Table of Contents . 4Project Summary . 8Introduction .8Research Methodology .8Background Concepts .8Key Findings .9Recommendations .11Conclusions .12References for summary.131Introduction . 14Research Team and Acknowledgements .152Research Topic. 17BRANZ Research topic .17Project Scope .18Medium-Density Housing.18Building acoustics not room acoustics .19Building acoustics not contol of noise sources .19Industry rather than end-user consultation .203Methodology . 21Researchers .21Project Stages.21Stage 1 - Literature review and state of play .21Stage 2 – Industry Consultation .22Stage 3 – Develop Solutions .234Background Concepts. 24Key Concepts of Noise Control and Acoustics .24Noise - Health and Wellbeing Effects .26Residential Noise Management.26Sound Insulation .28Sound Insulation Descriptors.29Acoustical Design .325Key Findings . 33Introduction to Findings .33State of Play .34State of play introduction .34Study report pdf 1 of 2, Version 3 - March 2018 RevisionPg 4
BRANZ Research Project LR0514, June 2017Acoustical Design of Medium Density HousingContext .35Drivers for acoustical design .40Key Areas Influencing Internal Acoustic Quality .42Current noise related regulations .43Integrated design .52Classification / Rating Systems.53Information Sources NZ and Internationally.54Industry consultation summary .59Other areas highlighted in consultation .60General Issues .61Specific Information Needs and gaps .63Basic Concepts.64Inter-tenancy walls/floors .67External Noise / Ventilation .72Building Services .75Other Acoustic considerations for the building .76Integration with other Design Factors.78Building Solutions.80Construction .82Planning and Layout .84Renovations and Change of Use .856Proposed Future Actions . 86Dissemination Methods.86“QUIET HOUSING” Hub .86Promotion Phase.89Transparency of acoustic outcomes .90Research and Development .91Introduction.91Post-occupancy objective and subjective surveys .92Building System Solutions and Tools .95Prediction Methods .98Conclusion .99Useful Overseas Solutions . 100Robust Details UK. 100Dataholz.com . 101Overseas Flooring Solutions . 101NZ Building Code . 1057Conclusions . 106Appendix AReferences. 107A1References . 107A2List of image permissions . 112Appendix BOriginal project proposal . 113B1Project objectives . 113B2Expected project outcome . 113B3Describe your project methodology . 114Appendix CAcoustics and Noise control fundamentals. 117Study report pdf 1 of 2, Version 3 - March 2018 RevisionPg 5
BRANZ Research Project LR0514, June 2017Acoustical Design of Medium Density HousingC1Fundamentals of acoustics . 117C2Noise control fundamentals. 119C2.1Transmission paths . 119C2.2Noise Sources . 120C2.3Sound Absorption . 121C2.4Sound Insulation ratings . 121C2.5Sound insulation testing . 122C3Glossaries . 123C3.1General sound terminology . 123C3.2Sound exposure terminology . 123C3.3Sound transmission, insulation and measurement terminology . 124Appendix DD1Factors influencing internal acoustic quality in NZ MDH. 127Introduction. 127D2 NOISE CONTROL . 129D2.1 NZ Building Code Performance Criteria . 129D2.2 Inter-tenancy (IT) Sound Insulation . 134D2.3 Inter-tenancy Impact Noise. 136D2.4 External Noise . 139D2.5 Building Services Noise . 143D2.6 Building Siting . 146D2.7 Rain Noise . 148D2.8 Detailing and Workmanship. 148D2.9 Expert advice . 149D3 RELATED FACTORS. 150D3.1 St
External Research Report ER30 – A [2018] Acoustical Design of Medium Density Housing. . Appendix C Acoustics and Noise control fundamentals. 117. BRANZ Research Project LR0514, June 2017 Acoustical Design of Medium Density Housing Study report pdf 1 of 2, Version 3 - March 2018 Revision Pg 6 .
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