Mixed-Use - 2016 Wightman

KenricVanWyk,PE,INCEBd.Cert.,LEEDAPBD+C,EDACPresident|[email protected]

BaileyGroendykeIntern|[email protected]

ConsultantsinAcoustics&AVLSystemsDesign124FultonStreetEast,GrandRapids,MI49503

707SWWashington,Suite1100,Portland,OR97205503-444-5656|www.acousticsbydesign.com

LunchandLearnSoundAdviceforMulti-UseFacilities

KenricVanWyk,President,PE,INCEBd.Cert.,LEEDAPBD+C,EDAC

• President&PrincipalofABD• MastersofScienceinEngineeringinAcoustics

fromPurdueUniversity• Over25yearsexperience• President,NationalCouncilofAcoustical

Consultants• BoardCertifiedwithInternationalNoiseControl

Engineers(INCE)• EducationChair,FGIAcousticWorkingGroup

BaileyGroendyke,Intern

• SenioratGrandValleyStateUniversity• DoublemajorinMusicandPhysics• Percussionist• PlayswithSymphonicWindEnsemble,Orchestra,

andNewMusicEnsemble• Vice-PresidentofWomeninSTEM• SecretaryforGVSUPhysicsClub

MelindaMiller,DirectorofAcousticsPE,INCEBd.Cert.,LEEDAPBD+C,CTS

• SeniorAcousticalConsultant• MastersofScienceinMechanicalEngineering

fromUniversityofIllinoisChicago• LocatedinPortland,Oregon• Over12yearsofexperience• InfoComm CertifiedTechnicalSpecialist• AcousticalSocietyofAmericaMember

TimHamilton,DirectorofAVLCTS-D

• SeniorAudio-VisualConsultant• InfoComm CertifiedTechnicalSpecialist• CrestronCertifiedProgrammer• BachelorofScience• Over20yearsexperience• NationalSystemContractorAssociation• SynergeticAudioConcepts• U.S.GreenBuildingCouncilMember

MarciBoksDirectorofOperations

BrianAtkinsonClientDevelopmentManager

• AIAPortlandAffiliateMemberandFREDprovider• AIANationalCEUprovider• AIAGrandRapidsandAIAMichiganPlatinumSponsor• Oneoftheoldest(1962)andlargest

IndependentAcousticalandAVLConsultingFirms• MemberoftheNationalCouncilofAcousticalConsultants(NCAC)• NationalBestandBrightestCompanies• NationalBestandBrightestSustainableCompanies

AcousticsByDesign

We are proud to be a member of the National Council of Acoustical Consultants (the NCAC). The NCAC is the only North American organization fully devoted to verifying the credentials of acoustical consulting firms. They certify that we are Professional Engineers and that we are Independent Consultants. Since we do not sell or represent any products, you receive 100% objective recommendations.

WhyWe’reIndependent

• BestandBrightestNationalSustainableCompanies• LEEDAccreditedProfessionals• LEEDforHealthcareAcousticStandardsCommittee• FGIGuidelinesAcousticStandardsCommittee• MemberofUSGreenBuildingCouncil• 40LEEDProjects• ABDGreenInitiativeforSustainability

Sustainability

MarketSectors

Auditoriums Churches Cinema

CorporateHQ Healthcare Hospitality

MarketSectors

Industrial Judicial K-12

MixedUse Offices University

ConsultingServicesAcoustics Noise3DAcousticalModeling PredictiveNoiseModelingArchitecturalAcoustics NoiseMitigation/IsolationAcousticalTesting HVACNoiseControlLEEDTesting&Reporting Noise&VibrationTesting

Audio VideoAudioSystemDesign SystemDesign3DComputerModeling TheatricalLightingDesignConstructionDocuments DigitalSignageDesignSystemCommissioning VideoConferenceDesign

• EarlyInvolvementintheProject

• CriticalElementoftheDesignTeam

• SchematicDesign,DesignDevelopment,

ConstructionDocuments,ConstructionAdmin

• UsuallySub-ConsultanttoArchitectorBuildingOwner

HowWeWorkinDesign

• MeetwithStaff

• NoiseandVibrationFieldTesting

• DevelopMitigationRecommendations

• PrioritizeMitigationMethodology

• Post-ImplementationNoiseSurvey/Testing

HowWeWorkinExisting

• Scaledforbigprojects;smallenoughtoprovidepersonalattention

• Nationalpresenceandexperience

• CompanyValuesincludediversityandsustainability

• Over50yearsofexperienceinAcousticaldesign

• IntegratedAcousticalandAVLdesign

• REVITandAutoCADproficient

TheAcousticsByDesignDifference

Uponcompletion,participantsareableto:1. Describethebasicprinciplesofsoundpropagationastheyrelatetomulti-

familyandmixed-useconstruction.2. Evaluateandselecteffectivesoundcontrolbuildingassembliesforcode

requirementsanddesigngoals.3. Identifydesignoptions forimprovedsoundisolationofairborneand

impactgeneratednoise.4. Identifycommonconstructiondeficienciesresultinginloweracoustical

performance.

LearningObjectives

Acoustics101

WhatIsSound?

• Physically– Apressurewave,generatedbyavibratingsourceandtransmitted

throughamedium

• Physiologically– Itiswhatisheardbythehumanearandinterpretedbythehuman

brainresultinginanextensivedifference inreactionofpeopletosoundswithsimilarphysicalcharacteristics

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

Hz:Cycles/second(Frequency)

Lengthof1cycle=Wavelength

250Hz

500Hz

1000Hz

Acoustics101

TheHumanEar

Acoustics101

dB:SoundPressure(Level)

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

TypicalSoundLevelsindBA:

140JetEngine(20m)

120“HardRock”BandThunder(nearby)

100AutoHorn(3m)PrintingPress

80NoisyCafeteria

60Averagevoicelevel- Officeambient

40Quietmusic

PainThreshold

LongTermHearingLossThreshold

Acoustics101

Objective• Doublingofenergyraiseslevel3dB• 10timestheenergyraiseslevel10dB

Subjective• 1dBchangeisnotperceptible• 3dBincreaseisjustperceptible• 5dBincreaseisclearlynoticeable• 10dBincreaseisperceivedastwiceasloud

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

NRC:NoiseReductionCoefficient• Averageabsorptioncoefficientat:

– 250,500,1000,and2000Hz

• Range:0(reflector)to1(absorber)

• Variessignificantlybasedonthemountingtype

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

NRC:NoiseReductionCoefficient1” Fiberglass

NRC = .75

Suspended acoustical tile

NRC = .75

Thin wood panelingNRC = .10

CarpetNRC = .30

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

RT:ReverberationTime• Timeittakesforsoundleveltodecay

• Closelyrelatedtoprogramming– Classrooms:0.6to0.7sec– Lecture/Confrooms:0.7to1.1sec– Smalltheaters:1.2to1.4sec– Gymnasium:1.3to1.7sec– Symphonyhalls:1.5to2.3sec

• Hardsurfaces- longreverberation• Softsurfaces- shortreverberation

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

STC:SoundTransmissionClass• Howmuchairbornesoundisreduced

fromonespacetoanother• Highernumbersarebetter

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

STC 56 Walls

0

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000

Frequency (Hz)

Tran

smis

sion

Los

s

(dB)

STC 56 Curve

10" Concrete Block, cells fully mortared, painted

Dbl. Row 2x4 Wood Stud, 1 lyr 5/8" GWB each side, 3.5 Fuzz

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCSII

NC&RC

Acoustics101SII:SpeechIntelligibilityIndex• Variesfrom0to1.0

– 0=completeprivacy– 1.0=completeintelligibility

PI:PrivacyIndexPrivacyIndexValues Rating

95%-100% ConfidentialSpeechPrivacy

80%-95% NormalSpeechPrivacy

60%-80% LimitedSpeechPrivacy

NC:NoiseCriterion

Acoustics101

DefinitionsHz

dB&dBANRCRTSTCIIC

NC&RC

Multi-UseAcoustics

Multi-UseAcoustics

w Biggestcomplaintformulti-familyhousing

wHealthConcerns

Multi-UseAcoustics

Therearethreemajoraspectsofmulti-useacoustics:1. Isolatingsoundbetweenrooms.2. Managingsoundwithinspaces.3. Managingbuildingsystemsvibrationandnoisecontrol.

Multi-UseAcoustics

wBuildingcode- STC50andIIC50(ImpactIsolationClass)

wAcceptablePerformance- STC55andIIC55wPreferredPerformance– STC60andIIC60

Multi-UseAcoustics

Multi-UseAcoustics

Multi-UseAcoustics

Multi-UseAcoustics

ThreeComponentsofHighPerformingAssemblieswMass

Multi-UseAcoustics

AirSpace

Multi-UseAcoustics

Resilientisolation

GoodPlanningSimplifiesSoundIsolation


w Considernoiseisolationintheearlyplanningstagesw Identifynoisesensitivespacesw IdentifymajornoisesourceswUsebuffers


w Typicalnoisegeneratingusesincludecinema,nightclubsandbars,restaurants,andsomeretailformats

w Typicalnoisesensitiveusesincluderesidentialcondominiums,apartments,hotels,andsometypesofprofessionaloffice(suchasattorneys� andpsychiatrists� offices)


PlumbingNoisew Pipingtypesw Routingw FlexibleConnectionstopumpsw Resilientmountsw Toilets


HVACNoisew HVACunitlocationandnoisecontrolw Commonsupplyorreturncanyieldcross-talkw Rooftopunitvibrationisolation

Retail

Controlofreverberantnoiseisespeciallyimportantwherelargenumbersofpeoplewillgatherw foodcourtsw assemblyareasw shoppingconcourse

Retail

Forlargevolumeandhighnoiselevelspaces:w Limitsoundreverberation(RT)toallowforacceptableoverheadpagingandbackgroundmusic.

w Loudspeakertype,placement,andorientation isofcriticalimportancetospeechintelligibilityandbackgroundmusicquality

Restaurants

w PossibleforwaitstafftobeexposedtonoiselevelsinviolationofOSHAregulations

w Lowernoiselevelsallowforbettercommunicationbetweenwaitstaffandpatrons(fewermistakes)

w Theacousticenvironmentisanimportantcomponentoftherestaurantambiance

w Thenoiselevellimitstablesizeandthesizeofgroupswhichyoucanbeseated

Restaurants

TypicalNoiseProblemsdueto:w denserseatingw kitcheninoropentodiningw highair-conditioningnoiselevelsw loudmusicw highceilingsandhardsurfacesw lackofpartitionsbetweenseatingareas

CommunityNoiseConcerns

TypicalNoiseProblemsdueto:wOutdoorpagingandbackgroundmusicsystemswMusicfrombarsandnightclubs+patronnoisewHVACnoise,includingcoolingtowers,condensers,grocerystorerefrigerationequipment

w Loadingdock/trashnoise

CorporateOfficeAcoustics

ABC’s of Open PlanAcoustical Environment

Absorb

Block

Cover


Distinction between

Speech Privacy

vs

Worker Distraction



SpeechPrivacydeterminedbythesignaltonoiseratio.

Privacyisdirectlyrelatedto:AbsorptionofEnvironmentNoiseIsolationofPartitionBackgroundNoiseLevel

Privacyisinverselyrelatedto:SourceLevel


AcousticalEnvironmentalDesign® Background noise® Space plan - layout, occupant density, panel height® Ceiling treatment – acoustical tiles, light fixtures, ventilation

ducts® Flooring and floor coverings® Social/physical factors - culture, user status, etc.® Nature of work performed in the space® Source noise level® Panel barrier performance® Panel absorptive performance


“NoiseintheWorkPlace”inNoiseControlEng.JournalVariable FactorofDetermination

CeilingNRC 0.49

CeilingHeight 0.41

Separation 0.14

ScreenHeight 0.02

FloorNRC 0.02

ScreenSTC 0.02

ScreenNRC <0.01

FloorArea <0.01


ElectronicSpeechPrivacy

Processor

Emitters

Control


CommonConstructionDeficienciesinAcousticallyRatedWalls

w Largegaps(greaterthan½”).w NotcuttingGWBtodeckprofile.w Nosealantaroundduct,conduit,orpipingpenetrations.w Bridgingelementsbetweenstudsindoublestudorstaggeredstudwalls.

w IncorrectuseofRCchannels(channelsinstalledupsidedown,sandwiched,sheetmetalscrewstoolong).

w Noinsulationorinsulationinstalledincorrectly.


w Improper/poorlyadjusteddoorsealsw Windowheatingelementsbridgingwallw Lightweightdrywallw Underfloorairsystemdistributionflankingw Windowmullionsw Wallsdon’tgouptoundersideofdeck


w Backtobackoutlets(lessthan24”apart)

ABDDetails

Outlet boxes

ABDDetails

Outlet boxes

ABDDetails

Outlet boxes

Puttypadsnotcompletelycoveringoutletsforbacktobackoutletconditions.


Nosealantatheadandfloortrack.


ABDDetails

Gypsum board assembly

Condominiums,Apartments,andHotels

ConstructionDeficienciesinAcousticalWalls

Incorrect use of RC channels• channels installed

upside down• sandwiched• sheet metal screws too

long

Bridging elements between studs in double stud or staggered stud walls.

ABDDetails

Duct penetration detail


Large gaps (greater than ½”).






• Walls don’t go up to underside of deck• Not cutting GWB to deck profile.


• Walls don’t go up to underside of deck• Not cutting GWB to deck profile.


No sealant around duct, conduit, or piping penetrations.

Improper/poorly adjusted door seals

PlumbingNoise

PlumbingNoise

PlumbingNoise

PlumbingNoise

PlumbingNoise

PlumbingNoise

THANKYOUAny Questions?