THORBURN - Urban Acoustics - 2016 10 18 · 2018-12-17 · Urban Acoustics Disclaimer: ... "Volume...
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Urban Acoustics Disclaimer: This presentation was developed by a third party andis not fundedby WoodWorks or the Softwood Lumber Board. Steve(n) Thorburn, PE, LEED AP, CTS-I, CTS-D [email protected] ACOUSTICAL, TECHNOLOGY, AND LIGHTING DESIGN HORBURN A SSOCIATES
Transcript of THORBURN - Urban Acoustics - 2016 10 18 · 2018-12-17 · Urban Acoustics Disclaimer: ... "Volume...
UrbanAcoustics
Disclaimer:ThispresentationwasdevelopedbyathirdpartyandisnotfundedbyWoodWorksortheSoftwoodLumberBoard.
Steve(n)Thorburn,PE,LEEDAP,CTS-I,CTS-D [email protected],TECHNOLOGY, ANDLIGHTING DESIGNHORBURN ASSOCIATES
“TheWoodProductsCouncil” isaRegisteredProviderwithTheAmerican InstituteofArchitectsContinuingEducationSystems(AIA/CES),Provider#G516.
Credit(s)earnedoncompletionofthiscoursewillbereportedtoAIACES forAIAmembers.CertificatesofCompletionforbothAIAmembersandnon-AIAmembersareavailableuponrequest.
ThiscourseisregisteredwithAIACESforcontinuingprofessionaleducation.Assuch,itdoesnotincludecontentthatmaybedeemedorconstruedtobeanapprovalorendorsementbytheAIAofanymaterialofconstructionoranymethodormannerofhandling,using,distributing,ordealing inanymaterialorproduct.
______________________________Questionsrelatedtospecificmaterials,methods,andserviceswillbeaddressedattheconclusionofthispresentation.
Aswithanyissueofbuildingperformance,theacousticsofamixed-usewood-framestructurecanbedesignedtomeetorfarexceedminimalrequirements.Itistheresponsibilityofthedesignteamtodetermineacousticalexpectationsfortheprojectandmeetthemwithintheavailablebudget.
Throughtheuseofcasestudies,thisfast-paced,interactivesessionwillexplorehowmulti-storywoodsystemscanbeusedtomeetacousticalprivacygoals.Discussionwillfocusonthedetailingandconstruction ofunits,andhowconsiderationoftheconstruction processcanhelpkeepacousticalcostsdown.
Withtheobjectiveofprovidingimplementablesolutions, thesessionwillincludeconstruction detailsandphotos showingwhathasandhasn’tworkedinactualbuildings.
Steve(n)Thorburn,PE,LEEDAP,CTS-I,CTS-D,[email protected]
UrbanAcoustics– CourseDescription
At the end of this program, participants will be able to:
- EvaluatetheacousticalimpactofICCBuildingCodevs.ResidentialExpectations
- Developcosteffective/acousticallycentricspaceplanningideasforwoodframedesign
- Producepracticalandconstructibleacousticalisolationdetailingforwoodframedesign
- Identifycommonacousticalcompromisesduringconstruction
Copyright Materials
This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is
prohibited.
© Thorburn Associates Inc.
Mixed Use
UrbanAcoustics
TheBuildingCode
OurGoalControltheTransferofNoise!
Slide16
AcousticalExpectations
Luxury? MarketRate? EntryLevel?
Entry Level HousingSTC 50 / IIC 50 (STC /IIC 48)*
Market Rate HousingSTC 55 / IIC 55 (STC/IIC 52)*
Luxury Rate HousingSTC 60+ / IIC 60+ (STC/IIC 55)*
IIC 60+ very hard to achieve with wood or tile surfaces
* Actual 1962 values – adjust when IBC set “50” as minimum
FHARulesofThumbfrom1962NOTETHISISNOTACODE,ITHASBECOMEtheDEFACTOSTANDARDBUTNOTCODE
ICCG22010 GuidelineforAcoustics
AcceptablePerformance“GradeBPerformance”
55/52(Laboratory/Field)Airborne- STC/NNICImpact- IIC/NISR
PreferredPerformance“GradeAPerformance”
60/57(Laboratory/Field)Airborne- STC/NNICImpact- IIC/NISR
STILLNOTACODE,ITISFROMTHEICC–FROMWHATAPPEARSTOBEARESEARCHPAPERFROMTHEINTERNET!
LandUseCompatibilityForCommunityNoise
ExteriorDay/NightNoiseLevels(Ldn,dBA)LandUseCategory
SingleFamily
MultiFamily
Motel,Hotels
OutsideUse
55 60 65 70 75 80
NormallyAcceptable
ConditionallyAcceptable
NormallyUnacceptable
ClearlyUnacceptable
ExteriortoInterior
MixedUse– BartoHousing
CommercialtoResidential
BEFORE GETRIDOFTHEPROBLEM
Not Addressed by Building Code- Implied at 45 dBA /Ldn
(Interior Noise Criterion)- Enforced as Nuisance Complaints- Enforced by “Local Codes”
THIS IS CHANGING – THE IgCC IS PLACING LIMITS ON
COMMERCIAL TO RESIDENTIAL
CommercialtoResidential
UrbanAcoustics
Vocabulary
Terms(TheyAreChanging!)SoundSTCFSTCNICASTCNNIC
ImpactIICFIICAIICNISR
GeneralNRdBALdnCNELOITC
NC NRC
NoiseInBuildings
UrbanAcoustics - Vocabulary
AcousticalTestLaboratory
AcousticalTestChamber
HowSTCorIICRatingIsFound
7 8 10 9 86 4 3
3
2
HowSTCorIICRatingIsFound
6 7 98 7
5 3 2
2
1
HowSTCorIICRatingIsFound
5 6 8 7 64 2 1
1
HowSTCorIICRatingIsFound
4 5 7 6 53 1
AcousticalDetailingisSystems
UrbanAcoustics
AcousticalWallSystems
AcousticalDetailing– TheGivens• WallsareFullHeight
(DecktoDeck)• Insulated (UnfacedBatt)
InallStudorJoistCavities• SealedAirTight• FloorSheeting
IsGluedandScrewed
WallProgression– SoundIsolation
STC34 STC38 STC45
WallProgression– SoundIsolation
STC50 STC63 STC49
MetalChannels
HatChannelsAreNot
AcousticalChannels
ResilientChannelsAre
AcousticalChannels
Slide40
HatChannelResilientIsolators
HatChannelResilientIsolators
LotLineWall– SoundIsolation
UrbanAcousticsAcoustical
Floor/CeilingSystemsSoundandImpact
FloorSystems
STC37
FloorSystems
STC43
FloorSystems
STC49
FloorSystems– ToppingSlab
Gypcreteor
LightWeighConcrete
FloorSystems
STC56
FloorSystems
STC62
FloorSystems
Battinsulationnotshowforclarity
FloorSystems
Battinsulationnotshowforclarity
FloorSystems
Battinsulationnotshowforclarity
FloorSystems
Battinsulationnotshowforclarity
IndependentlyFramedCeilingSystem
ImpactNoise
TheTapper
ImpactIsolation
• Impactnoisechangesasittravelsinthebuilding.• Impactnoiseisbestcontrolledatthesource.
EffectsofFloorCoveringonImpactIsolation
Battinsulationnotshowforclarity
IIC73 IIC64 IIC56 IIC43 IIC32
STC56
Cross-LaminatedTimber
70+
Cross-LaminatedTimber
70+
ACOUSTICALLYSTILLREALLYNEW
WeNeedMoreTestData
Inabsenceoftestdatawecomparetoknownacousticalsystems
Cross-LaminatedTimber
"Volumegenerallyassumedforthedensityofhardenedconcreteis150 lb./ft3.(2400 kg/m3)“
McGraw-HillEncyclopediaofScienceandTechnology.
Cross-LaminatedTimber
6inchthick20 lb./ft3.CLTSameMassas
1.6inchthickConcrete
BasedonAcousticsMassLawSTCRating
about38STC
Cross-LaminatedTimber
Cross-LaminatedTimber
70+ IIC 35
UrbanAcoustics
Leaks- DoorsandWindows
Slide67
Leaks: Where air can flow...
...so will sound.
AirTightSeal
BattInsulation
BlowInInsulation
OPENCELLFOAMCLOSEDCELLFOAMCELLULOUS/FIBER
Rigid“Foam”Insulation
UrbanAcoustics
OtherIssuestoConsider
AcousticalFiction!
• FiberBoard
AcousticalFiction!
• TrappedChannel
TrappedAirSpaceandScrews
STC55
STC38
InstallationIssues- RC
PlumbingIsolation
OtherNoiseIssues
CondominiumNoise
NowWeSeetheProblem
InstallationIssues- RC
InstallationIssues- RC
Slide83
Slide84
SprinklerLines/Heads
RESILIENTCEILINGSYSTEMS
DuctWork
HOLESINSYSTEMS
RecessedLightFixtures
RESILIENTCHANNELSINSTALLATION
FramingIssues
FramingIssues…(okPlumbing)
ACOUSTICALGYPSUMBOARD
DAMPING
OMG!
THISISVERYBAD!DONOTBELIEVETHEINTERNET!
OMG!
THISISVERYBAD!DONOTBELIEVETHEINTERNET!
OMG!
WhenitcomestoAcousticsOnlyBelieveRealLaboratoryTestDataorSomeoneyouPay
andcanSue!
ThisconcludesTheAmericanInstituteofArchitectsContinuingEducationSystemsCourse
QUESTIONS?
Steve(n)Thorburn,PE,LEEDAP
ThorburnAssociatesInc.
