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UrbanUrbanUrbanUrbanAcousticsAcousticsAcousticsAcoustics

Design Professionals

Lighting Design

Technology LightingAudio Video SystemsRoom Acoustics

AcousticsLighting DesignFixture Layout

Fixture Specification

Audio Video SystemsTelepresence

Sound Masking/Paging

Room AcousticsSound Isolation

Mechanical NoiseControls

DaylightingStructured Cabling

SecurityVibration Isolation

Environmental Noise

“The Wood Products Council” is a Registered Provider with TheAmerican Institute of Architects Continuing Education Systems (AIA/CES).Credit(s) earned on completion of this program will be reported toCredit(s) earned on completion of this program will be reported toAIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. g, g y p

Questions related to specific materials, methods, and services will b dd d t th l i f thi t tibe addressed at the conclusion of this presentation.

Copyright MaterialsCopyright Materials

This presentation is protected by US and InternationalThis presentation is protected by US and InternationalCopyright laws. Reproduction, distribution, display and use of the presentation without written permission of the

speaker is prohibited.

© The Wood Products Council 2013

Learning Objectivesea g Object es

At the end of this program, participants will be able to:At the end of this program, participants will be able to:

Evaluate the acoustical impact of ICC Building Code vs. ResidentialExpectationsDevelop cost effective / acoustically centric space planning ideas for woodDevelop cost effective / acoustically centric space planning ideas for woodframe designProduce practical and constructible acoustical isolation detailing for woodframe designframe designIdentify common acoustical compromises during construction

Urban AcousticsUrban AcousticsUrban AcousticsUrban Acoustics

The Building CodeThe Building CodeThe Building CodeThe Building Code

Acoustical Expectations

Luxury? Market Rate? Entry Level?

Slide 7

HUD Rules of Thumb from 1962

Entry Level Housing

NOTE THIS IS NOT A CODE, IT HAS BECOME the DE FACTO STANDARD BUT NOT CODE

Entry Level HousingSTC 50 / IIC 50

Market Rate HousingMarket Rate HousingSTC 55 / IIC 55

Luxury Rate HousingLuxury Rate HousingSTC 60+ / IIC 60+

IIC 60+ very hard to achieve-- IIC 60+ very hard to achievewith wood or tile surfaces

Sound Ratings at Adjacencies HUD 1974 ICC G2 2010 Guideline for AcousticsSTILL NOT A CODE, EVEN WORST IT IS FROM THE ICC –

FROM WHAT APPEARS TO BE A RESEARCH PAPER FROM THE INTERNET!

Acceptable Performance Preferred Performance“Grade B Performance”

55 / 52“Grade A Performance”

60 / 57(Laboratory / Field)

Airborne STC / NNIC(Laboratory / Field)

Airborne STC / NNICImpact IIC / NISR Impact IIC / NISR

Land Use Compatibility For Community Noise

Exterior Day/Night Noise Levels (Ldn, dBA)Land Use Category

Single Family

55 60 65 70 75 80

Multi Family

Motel, HotelsMotel, Hotels

Outside Use

NormallyAcceptable

ConditionallyAcceptable

NormallyUnacceptable

ClearlyUnacceptable

Exterior to Interior

Mixed Use Buffalo Wild Wings

• Criteria– Residential to Residential– Retail to Residential– Retail to Residential

• Sealed Windows – Air Changes Per Hour• Impact Isolation• Wood Construction• Wood Construction

Commercial to Residential

BEFORE GET RID OF THE PROBLEM

Commercial to Residential

Not Addressed by Building Code- Implied at 45 dBA /Ldn

(Interior Noise Criterion)- Enforced as Nuisance Complaints


VocabularyVocabularyVocabularyVocabulary

Terms (They Have Changed!)

Sound Impact• NR• STC• FSTC

• IICFIIC

• dBALd FSTC

• ASTC• FIIC• AIIC

• Ldn• CNEL

• NIC• NNIC

• NISR• OITC

Urban AcousticsUrban Acoustics VocabularyVocabulary


AcousticalAcousticalAcousticalAcousticalWall SystemsWall SystemsWall SystemsWall Systems

Acoustical Detailing – The Givens

• Walls are Full Height(Deck to Deck)

• Insulated (Unfaced Batt)In all Stud or Joist Cavities

• Sealed Air TightSealed Air Tight• Floor Sheeting

Is Glued and ScrewedIs Glued and Screwed

Wall Progression

STC 34 STC 38 STC 45

Wall Progression

STC 50 STC 63 STC 49

Metal Channels

Hat ChannelsAre Not

Acoustical Channels

Resilient ChannelsAre

Acoustical ChannelsAcoustical Channels

Slide 24

Puck Resilient Isolator Lot Line Wall

Lot Line WallUrban AcousticsUrban AcousticsUrban AcousticsUrban Acoustics

AcousticalAcousticall / ilil / iliFloor / Ceiling SystemsFloor / Ceiling Systems

Floor Systems

STC 37

Floor Systems

STC 43

Floor Systems

STC 49

Floor Systems – Topping Slab

Gypcreteoror

Light Weigh Concrete

Floor Systems

STC 56

Floor Systems

STC 62

Floor Systems

Batt insulation not show for clarity

Floor Systems


Floor Systems


Floor Systems


Impact Noise Impact Isolation

• Impact noise changes as it travels in the building.• Impact noise is best controlled at the source.

Effects of Floor Covering

IIC 73 IIC 64 IIC 56 IIC 43 IIC 32


IIC 73 IIC 64 IIC 56 IIC 43

STC 56


LeaksLeaks Doors and WindowsDoors and WindowsLeaksLeaks Doors and WindowsDoors and Windows

Leaks:Leaks: Where air can flow...

Slide 43...so will sound.

Air Tight Seal

Insulation


Other Issues to ConsiderOther Issues to ConsiderOther Issues to ConsiderOther Issues to Consider

Acoustical Fiction!

• Fiber Board

Acoustical Fiction!

• Trapped Channel

Plumbing Isolation

Slide 50

Slide 51

Credits• California Noise Control Office – Green Book (out

of print)• PAC International, Inc. (Risc 1 Isolator)

http://www.pac intl.com/• USG – Acoustics Collection of STC test reports (out

of print)• EPA Multifamily housing (out of print)• EPA Levels document (out of print)

• Gyp Crete http://www.maxxon.com/• Ceramic Tile Institute of America

http://www.ctioa.org/• The National Council of Acoustical ConsultantsEPA Levels document (out of print)

• USG Handbook for Gypsum Board Installation• ICC G2 2010 Guideline for Acoustics• Clark Dietrich Metal Framing

The National Council of Acoustical Consultantshttp://www.ncac.com/

• Thorburn Associates – http://www.TA Inc.com/• Mullins Acoustics http://mullinsacoustics.com/

www.clarkdietrich.com/• Homasote http://www.homasote.com/• National Gypsum Company

http://www nationalgypsum com/

• Lilly Acoustics http://www.jglacoustics.com/• WoodWorks.org

http://www.nationalgypsum.com/

This concludes The AmericanInstit te of Architects Contin ingInstitute of Architects ContinuingEducation Systems Course

Steve(n) Thorburn, PE, LEED APThorburn Associates Inc.SJT@TA ISJT@TA Inc.com

Urban AcousticsUrban AcousticsUrban AcousticsUrban AcousticsTh k Y !!!Th k Y !!!Thank You!!!Thank You!!!

St ( ) Th b PE LEED APSt ( ) Th b PE LEED APSteve(n) Thorburn, PE, LEED APSteve(n) Thorburn, PE, LEED APsjt@TAsjt@TA Inc comInc comsjt@TAsjt@TA Inc.comInc.com

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