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Dr. Kenneth P. Roy, fellow ASA
Sr. Principal Research Scientist
Armstrong Building Products Technology, R&D
Lancaster, PA, USA kproy@armstrong.com
Architectural AcousticsArchitectural Acoustics
& Green Building IEQ& Green Building IEQ
Green Building Council
of Australia
Sydney, Australia
5 August 2014
Change
Change
No Past Today No Future
Acoustic Standards Participation
ASA: Acoustical Society of America, elected Fellow 1999
member TCAA Technical Committee on Architectural Acoustics
member TCN Technical Committee on Noise
member ASA/ANSI WG 52 Classroom Acoustics
member ASA/ANSI WG 44 Speech Privacy in Healthcare
ASTM: ASTM International
Chairman Subcommittee E33.06 on International Standards
Member Sub Committee E33.02, E33.03, E33.04, E33.05, E33.07, E33.09
ASHRAE: member TC2.6 Technical Committee on Sound and Vibration
member TC2.1 Technical Committee on Physiology and Human Environment
ANSI: American National Standards Institute
Head of US Technical Advisory Group & delegation to ISO TC43/SC2 on Building Acoustics
ISO: International Organization for Standardization
Chairman/Convener – joint TC 43 SC 2 & TC205 /WG27 Building Environment Design – Indoor
Acoustic Environment
USGBC: United States Green Building Council
member, Subject Matter Expert - Acoustics
Presentations & Publications (since 1990)
• invited lecturer at 16 Universities in 6 countries
• over 170 Seminars on Architectural Acoustic Design in 18 countries
• over 100 publications in 30 journals, trade magazines and conference proceedings
Lenticular clouds, Mt Fuji - google
Building Codes
• International Code Council
Rating Systems
• LEED, Green Star
Standards
• ANSI S12.60, AS/NZS 2107
Design Guidelines
• ASHRAE Handbook, FGI for HC
Design Knowledge
• engineers, designers, consultants
Introduction
Introduction
Architecture
- Society -- Mission -
Introduction
Architecture
- Society -- Mission -
Offices – work
 ‘I’ spaces
 ‘we’ spaces
Healthcare – heal
 ‘healing’ spaces
 safety
Schools – learn
 ‘learning’ spaces
 teaching
Introduction
- Mission -
Architecture
Offices – work
 ‘I’ spaces
 ‘we’ spaces
Healthcare – heal
 ‘healing’ spaces
 safety
Schools – learn
 ‘learning’ spaces
 teaching
Buildings are for People
• we design
• we build
• we operate
Indoor Activities
• we communicate
• we concentrate
• we rest
Indoor Environmental Quality
• Acoustic Comfort (primary)
• Visual Comfort (primary)
• Thermal Comfort (enabling)
• IAQ (enabling)
Introduction
Architecture
- Society -- Mission -
Offices – work
 ‘I’ spaces
 ‘we’ spaces
Healthcare – heal
 ‘healing’ spaces
 safety
Schools – learn
 ‘learning’ spaces
 teaching
 Air
 Water
 Material Resources
Energy
GOAL:
To provide a space that is both ‘healthy’ and ‘productive’ for the
occupants, while also being both energy efficient and sustainable
Introduction – Buildings are for People
Building Use and Acoustic Needs
Intelligibility
within
Privacy
between
Sound
Quality
Concentration
(nonintrusive)
Private Office high high medium high
Conference high high medium low
Open Plan medium medium low high to low
Call Center low low low medium
Acoustic Comfort in Office Buildings
Introduction – Buildings are for People
• To achieve positive visual & acoustic integration
 architects and designers have more material and system choices
• To understand range of options for design professionals to
create acoustic solutions that:
 Add to visual aesthetics
 Perform well acoustically
 Contribute to sustainable design
Goal: Acoustics and Aesthetics Working Together
Introduction – Aesthetics & Acoustics
Introduction – Buildings are for People
1. Current State of Building IEQ Performance
 USA and Australia – CBE surveys
2. The meaning of Acoustic Comfort in IEQ
3. Evolving “Work Patterns” and Interior Design
 Gensler Workplace Study
4. USA and LEED v4 approaches to Acoustic Comfort
 Office, Healthcare, Education
5. Green Star considerations to IEQ and Acoustic Comfort
Outline
Building IEQ Performance - Today
1
Workplaces – Current approach, “form fits function”
Traditional – Standard & Green
Traditional – Standard & Green
Workplaces – Current approach, “form fits function”
Traditional – Standard & Green
Workplaces – Current approach, “form fits function”
LEED 2009
No acoustics
With acoustics
Why poor ‘Acoustic Comfort’ ??
Traditional – Standard & Green
Post Occupancy Evaluation of Office Building IEQ
USA and Australia Bldgs
Meaning of Acoustic Comfort in Building IEQ
2
Source: BOSTI, 2001
People Are The Most
Significant Investment
82% is spent on people
Cost of doing business
over 10 year average
(1998 – 2008)
Sound Distractions are
the # 1 problem
Acoustic Comfort & IEQ
Gail Brager, UC Berkeley, CBE
Acoustic Comfort & IEQ
Gail Brager, UC Berkeley, CBE
Acoustic Comfort & IEQ
ASID Sound Solutions, 2005
Acoustic Comfort & IEQ
Evolving “Work Patterns” and Interior Design
3
Traditional – Standard & Green
Workplaces – Current approach, “form fits function”
Open Plan Design
Professional
Administrative
Clerical
Office & Health Care
Traditional – Standard & Green
Confidential Privacy
Closed Plan Design
• Management Office
• HR Office
• Legal Office
• Conference Rm
• Doctors Office
• Medical Treatment Rm
Office & Health Care
Traditional – Standard & Green
http://m.gensler.com/uploads/documents/2013_US_Workplace_Survey_07_15_2013.pdf
New Functional Design
Workplaces – New approach, “function drives form”
Source: BOSTI, 2001
6%
3%
6%
4%
9%
10%62%
Focused
Quiet Work
Chores/Lab Work
Break
In Meeting Rooms
Informal Interactions
Meet In Workplace
Phone
Computer/Quiet Work
Knowledge worker activities, 2001
Source: Gensler, 2013
Knowledge worker activities, 2008, 2013
New Functional Design
Workplaces – New approach, “function drives form”
Collaboration
Focus Area
Collaboration Area
Privacy Area
Workplaces – New approach, “function drives form”
New Functional Design
Within a ‘team’
– Office building “collaboration areas”: interactions
and teaming activities require open communications
within groups
• Likely to be open plan design
• Speech intelligibility is key
Between ‘teams’
– Need for moderate acoustic separation between
different groups, and significant acoustic separation
from focus areas and privacy areas
• Noise is key
Solutions
– Ceiling clouds, canopies, vertical slats and baffles
are appropriate solutions to complement low/high
furniture systems within and between areas
New Functional Design
Workplaces – New approach, “function drives form”
collaboration areas
360.steelcase.com | Issue 66 | 29
New Functional Design
Workplaces – New approach, “function drives form”
collaboration areas
Within a ‘space’
– Office “focus areas”: knowledge workers can
concentrate on individual work needs
• These will most likely be open plan areas
• Noise and low distractions are key
Between ‘spaces’
– Important to minimize transfer of sound in all
directions. Design factors include:
• architectural/technology enhancements
• behavioral directives
Solutions
– High AC and NRC rated ceilings,
moderate-to-high furniture
panels, and
electronic sound masking are all
design elements to
consider
New Functional Design
Workplaces – New approach, “function drives form”
focus areas
New Functional Design
Workplaces – New approach, “function drives form”
focus areas
Within a ‘space’
– Office building “privacy areas”: knowledge
workers, management, legal, financial, HR, etc.,
can concentrate on individual work needs and
have confidential discussions
• Most likely closed plan areas
• Noise, and especially privacy are key
Between ‘spaces’
– Important to minimize sound transfer in all
directions. Design factors include primarily
robust choices of architectural elements
Solutions
– High NRC and CAC rated ceilings, high
STC rated walls, and
electronic sound
masking are all design elements consider
New Functional Design
Workplaces – New approach, “function drives form”
privacy areas
New Functional Design
Workplaces – New approach, “function drives form”
privacy areas
New Functional Design
Workplaces – New approach, “function drives form”
Implementing Integrated Work Page 8 ©2010 Knoll, Inc.
Layout of functional
work areas:
• Collaboration
• Focus
• Privacy
4
LEED v4 approaches to Acoustic Comfort in Healthcare
Healthcare – New drivers, USA regulations
HIPAA Speech Privacy
Healthcare – New drivers, USA regulations
HCAHPS Quality Survey
Healthcare – New drivers
LEED v4 HC Acoustics
HC Evidence Based Design
EBD – Corridor Solutions, Palomar & CHD
Sound Level Monitors
installed in corridor
ceilings as noted.
Acoustic data sampled
24/7.
Healthcare – New drivers
Phase 3 to Phase 1 Phase 3 to Phase 1 Phase 3 to Phase 1 Phase 3 to Phase 1
T6, Elevator Lobby T6, Nurse Station3 T6, Nurse Station 1 T6, Corr Outside 611
Day Night Day Night Day Night Day Night
Lmax 0.4 0.7 Lmax -0.7 0.5 Lmax -0.5 -1.4 Lmax -0.3 -2.8
L10 0.7 1.0 L10 -1.2 0.2 L10 -1.3 -1.0 L10 0.0 0.2
Leq 0.8 1.2 Leq -1.0 0.3 Leq -1.0 -0.8 Leq -0.1 -0.2
L50 0.0 1.6 L50 -1.0 -0.1 L50 -1.1 -0.2 L50 -0.1 1.1
L90 0.7 1.4 L90 -0.7 0.0 L90 -0.4 0.2 L90 0.1 1.3
Lmin 0.7 1.1 Lmin -0.4 0.0 Lmin 0.2 0.3 Lmin 0.3 1.3
HC Evidence Based Design
EBD – Corridor Solutions
Soundscape - Before P1:
 carpet (NRC 0.20)
 standard ceiling (NRC 0.55,CAC 35)
Soundscape – After P3:
 vinyl/ linoleum flooring (NRC 0.0)
 HP ceiling tile (NRC 0.75,CAC 40)
30
40
50
60
70
80
90
100
0:00
2:15
4:30
6:45
9:00
11:15
13:30
15:45
18:00
20:15
22:30
0:45
3:00
5:15
7:30
9:45
12:00
14:15
16:30
18:45
21:00
23:15
1:30
3:45
6:00
8:15
10:30
12:45
15:00
17:15
19:30
21:45
0:00
2:15
4:30
6:45
9:00
11:15
13:30
15:45
18:00
20:15
22:30
NoiseLevel(dBA)
T6, Phase 1, Nurse Station3
Lmax
Leq
Lmin
D
N
Frederick et al, Palomar Pomerado Health, 2011
Healthcare – New drivers
LEED v4 approaches to Acoustic Comfort in Schools
5
Table 1. Allowable classroom reverberation time (seconds)
USGBC LEED®
for Schools - per ANSI S12.60 Part 1. Requirements listed in the green
shaded areas are prerequisites, # indicates provision for 0.3 sec for those with disabilities.
GBCA Green Star – per AS/NZS 2107:2000. * indicates that the lower level (0.4 sec) must
be achieved for classrooms intended for students with disabilities, otherwise 0.5 sec is
acceptable
< 283 m
3
< 566m
3
> 566 m
3
LEED v4 0.6 s 0.7 s < 1.5 s
Green Star
Teaching Spaces - Primary schools
0.4 s to 0.5 s*
Education – New drivers
Green Rating Systems
Design for Low Reverberation (China Green Campus)
First Affiliated Primary School of Fuzhou Education College, located at
Fuzhou, Fujian Province 2011-9-22
School Evidence Based Design
GB 50118-2010: RT,
reverberation time,
for frequencies of
500 and 1000 HZ in
normal classroom
with volume ≤ 200m³
shall be ≤ 0.8s.
After enhancement
the RT is 0.54s,
down 65% and
meets the standard.
Product: Acoustic ceiling tile, with NRC 0.60
School Evidence Based Design
Objective Acoustical Modeling – EASE speech intelligibility, STI
Product: Acoustic
ceiling tile NRC 0.60
School Evidence Based Design
Considerations of IEQ Design in Australian Schools
6
Acoustic Comfort & IEQ
For Speech to be Intelligible to the Students we must:
1.Design for Sound Clarity w/ Architecture & Acoustics
2.Protect Sound Clarity w/ Construction & Mechanical Design
3.Consider mechanical, transportation, and activity noise
Hearing speech is not sufficient …. It must be understood!
Education – Design for and protect speech
Acoustic Comfort & IEQ
Acoustic Comfort & IEQ
Considerations for Design of Classrooms
• design architecture for speech clarity with RT
• design mechanical equipment for low noise (S/N) with dBA
• design exterior construction with high transmission loss (environmental noise)
with OITC
• design interior construction for high transmission loss (activity noise) with STC

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Dr kenneth roy slides

  • 1. Dr. Kenneth P. Roy, fellow ASA Sr. Principal Research Scientist Armstrong Building Products Technology, R&D Lancaster, PA, USA kproy@armstrong.com Architectural AcousticsArchitectural Acoustics & Green Building IEQ& Green Building IEQ Green Building Council of Australia Sydney, Australia 5 August 2014
  • 4. Acoustic Standards Participation ASA: Acoustical Society of America, elected Fellow 1999 member TCAA Technical Committee on Architectural Acoustics member TCN Technical Committee on Noise member ASA/ANSI WG 52 Classroom Acoustics member ASA/ANSI WG 44 Speech Privacy in Healthcare ASTM: ASTM International Chairman Subcommittee E33.06 on International Standards Member Sub Committee E33.02, E33.03, E33.04, E33.05, E33.07, E33.09 ASHRAE: member TC2.6 Technical Committee on Sound and Vibration member TC2.1 Technical Committee on Physiology and Human Environment ANSI: American National Standards Institute Head of US Technical Advisory Group & delegation to ISO TC43/SC2 on Building Acoustics ISO: International Organization for Standardization Chairman/Convener – joint TC 43 SC 2 & TC205 /WG27 Building Environment Design – Indoor Acoustic Environment USGBC: United States Green Building Council member, Subject Matter Expert - Acoustics Presentations & Publications (since 1990) • invited lecturer at 16 Universities in 6 countries • over 170 Seminars on Architectural Acoustic Design in 18 countries • over 100 publications in 30 journals, trade magazines and conference proceedings
  • 5. Lenticular clouds, Mt Fuji - google Building Codes • International Code Council Rating Systems • LEED, Green Star Standards • ANSI S12.60, AS/NZS 2107 Design Guidelines • ASHRAE Handbook, FGI for HC Design Knowledge • engineers, designers, consultants Introduction
  • 7. Introduction Architecture - Society -- Mission - Offices – work  ‘I’ spaces  ‘we’ spaces Healthcare – heal  ‘healing’ spaces  safety Schools – learn  ‘learning’ spaces  teaching
  • 8. Introduction - Mission - Architecture Offices – work  ‘I’ spaces  ‘we’ spaces Healthcare – heal  ‘healing’ spaces  safety Schools – learn  ‘learning’ spaces  teaching Buildings are for People • we design • we build • we operate Indoor Activities • we communicate • we concentrate • we rest Indoor Environmental Quality • Acoustic Comfort (primary) • Visual Comfort (primary) • Thermal Comfort (enabling) • IAQ (enabling)
  • 9. Introduction Architecture - Society -- Mission - Offices – work  ‘I’ spaces  ‘we’ spaces Healthcare – heal  ‘healing’ spaces  safety Schools – learn  ‘learning’ spaces  teaching  Air  Water  Material Resources Energy
  • 10. GOAL: To provide a space that is both ‘healthy’ and ‘productive’ for the occupants, while also being both energy efficient and sustainable Introduction – Buildings are for People
  • 11. Building Use and Acoustic Needs Intelligibility within Privacy between Sound Quality Concentration (nonintrusive) Private Office high high medium high Conference high high medium low Open Plan medium medium low high to low Call Center low low low medium Acoustic Comfort in Office Buildings Introduction – Buildings are for People
  • 12. • To achieve positive visual & acoustic integration  architects and designers have more material and system choices • To understand range of options for design professionals to create acoustic solutions that:  Add to visual aesthetics  Perform well acoustically  Contribute to sustainable design Goal: Acoustics and Aesthetics Working Together Introduction – Aesthetics & Acoustics
  • 13. Introduction – Buildings are for People 1. Current State of Building IEQ Performance  USA and Australia – CBE surveys 2. The meaning of Acoustic Comfort in IEQ 3. Evolving “Work Patterns” and Interior Design  Gensler Workplace Study 4. USA and LEED v4 approaches to Acoustic Comfort  Office, Healthcare, Education 5. Green Star considerations to IEQ and Acoustic Comfort Outline
  • 15. Workplaces – Current approach, “form fits function” Traditional – Standard & Green
  • 16. Traditional – Standard & Green Workplaces – Current approach, “form fits function”
  • 17. Traditional – Standard & Green Workplaces – Current approach, “form fits function”
  • 18. LEED 2009 No acoustics With acoustics Why poor ‘Acoustic Comfort’ ??
  • 19. Traditional – Standard & Green Post Occupancy Evaluation of Office Building IEQ USA and Australia Bldgs
  • 20. Meaning of Acoustic Comfort in Building IEQ 2
  • 21. Source: BOSTI, 2001 People Are The Most Significant Investment 82% is spent on people Cost of doing business over 10 year average (1998 – 2008) Sound Distractions are the # 1 problem Acoustic Comfort & IEQ
  • 22. Gail Brager, UC Berkeley, CBE Acoustic Comfort & IEQ
  • 23. Gail Brager, UC Berkeley, CBE Acoustic Comfort & IEQ
  • 24. ASID Sound Solutions, 2005 Acoustic Comfort & IEQ
  • 25. Evolving “Work Patterns” and Interior Design 3
  • 26. Traditional – Standard & Green Workplaces – Current approach, “form fits function”
  • 27. Open Plan Design Professional Administrative Clerical Office & Health Care Traditional – Standard & Green
  • 28. Confidential Privacy Closed Plan Design • Management Office • HR Office • Legal Office • Conference Rm • Doctors Office • Medical Treatment Rm Office & Health Care Traditional – Standard & Green
  • 30. Source: BOSTI, 2001 6% 3% 6% 4% 9% 10%62% Focused Quiet Work Chores/Lab Work Break In Meeting Rooms Informal Interactions Meet In Workplace Phone Computer/Quiet Work Knowledge worker activities, 2001 Source: Gensler, 2013 Knowledge worker activities, 2008, 2013 New Functional Design Workplaces – New approach, “function drives form” Collaboration
  • 31. Focus Area Collaboration Area Privacy Area Workplaces – New approach, “function drives form” New Functional Design
  • 32. Within a ‘team’ – Office building “collaboration areas”: interactions and teaming activities require open communications within groups • Likely to be open plan design • Speech intelligibility is key Between ‘teams’ – Need for moderate acoustic separation between different groups, and significant acoustic separation from focus areas and privacy areas • Noise is key Solutions – Ceiling clouds, canopies, vertical slats and baffles are appropriate solutions to complement low/high furniture systems within and between areas New Functional Design Workplaces – New approach, “function drives form” collaboration areas 360.steelcase.com | Issue 66 | 29
  • 33. New Functional Design Workplaces – New approach, “function drives form” collaboration areas
  • 34. Within a ‘space’ – Office “focus areas”: knowledge workers can concentrate on individual work needs • These will most likely be open plan areas • Noise and low distractions are key Between ‘spaces’ – Important to minimize transfer of sound in all directions. Design factors include: • architectural/technology enhancements • behavioral directives Solutions – High AC and NRC rated ceilings, moderate-to-high furniture panels, and electronic sound masking are all design elements to consider New Functional Design Workplaces – New approach, “function drives form” focus areas
  • 35. New Functional Design Workplaces – New approach, “function drives form” focus areas
  • 36. Within a ‘space’ – Office building “privacy areas”: knowledge workers, management, legal, financial, HR, etc., can concentrate on individual work needs and have confidential discussions • Most likely closed plan areas • Noise, and especially privacy are key Between ‘spaces’ – Important to minimize sound transfer in all directions. Design factors include primarily robust choices of architectural elements Solutions – High NRC and CAC rated ceilings, high STC rated walls, and electronic sound masking are all design elements consider New Functional Design Workplaces – New approach, “function drives form” privacy areas
  • 37. New Functional Design Workplaces – New approach, “function drives form” privacy areas
  • 38. New Functional Design Workplaces – New approach, “function drives form” Implementing Integrated Work Page 8 ©2010 Knoll, Inc. Layout of functional work areas: • Collaboration • Focus • Privacy
  • 39. 4 LEED v4 approaches to Acoustic Comfort in Healthcare
  • 40. Healthcare – New drivers, USA regulations HIPAA Speech Privacy
  • 41. Healthcare – New drivers, USA regulations HCAHPS Quality Survey
  • 42. Healthcare – New drivers LEED v4 HC Acoustics
  • 43. HC Evidence Based Design EBD – Corridor Solutions, Palomar & CHD Sound Level Monitors installed in corridor ceilings as noted. Acoustic data sampled 24/7. Healthcare – New drivers
  • 44. Phase 3 to Phase 1 Phase 3 to Phase 1 Phase 3 to Phase 1 Phase 3 to Phase 1 T6, Elevator Lobby T6, Nurse Station3 T6, Nurse Station 1 T6, Corr Outside 611 Day Night Day Night Day Night Day Night Lmax 0.4 0.7 Lmax -0.7 0.5 Lmax -0.5 -1.4 Lmax -0.3 -2.8 L10 0.7 1.0 L10 -1.2 0.2 L10 -1.3 -1.0 L10 0.0 0.2 Leq 0.8 1.2 Leq -1.0 0.3 Leq -1.0 -0.8 Leq -0.1 -0.2 L50 0.0 1.6 L50 -1.0 -0.1 L50 -1.1 -0.2 L50 -0.1 1.1 L90 0.7 1.4 L90 -0.7 0.0 L90 -0.4 0.2 L90 0.1 1.3 Lmin 0.7 1.1 Lmin -0.4 0.0 Lmin 0.2 0.3 Lmin 0.3 1.3 HC Evidence Based Design EBD – Corridor Solutions Soundscape - Before P1:  carpet (NRC 0.20)  standard ceiling (NRC 0.55,CAC 35) Soundscape – After P3:  vinyl/ linoleum flooring (NRC 0.0)  HP ceiling tile (NRC 0.75,CAC 40) 30 40 50 60 70 80 90 100 0:00 2:15 4:30 6:45 9:00 11:15 13:30 15:45 18:00 20:15 22:30 0:45 3:00 5:15 7:30 9:45 12:00 14:15 16:30 18:45 21:00 23:15 1:30 3:45 6:00 8:15 10:30 12:45 15:00 17:15 19:30 21:45 0:00 2:15 4:30 6:45 9:00 11:15 13:30 15:45 18:00 20:15 22:30 NoiseLevel(dBA) T6, Phase 1, Nurse Station3 Lmax Leq Lmin D N Frederick et al, Palomar Pomerado Health, 2011 Healthcare – New drivers
  • 45. LEED v4 approaches to Acoustic Comfort in Schools 5
  • 46. Table 1. Allowable classroom reverberation time (seconds) USGBC LEED® for Schools - per ANSI S12.60 Part 1. Requirements listed in the green shaded areas are prerequisites, # indicates provision for 0.3 sec for those with disabilities. GBCA Green Star – per AS/NZS 2107:2000. * indicates that the lower level (0.4 sec) must be achieved for classrooms intended for students with disabilities, otherwise 0.5 sec is acceptable < 283 m 3 < 566m 3 > 566 m 3 LEED v4 0.6 s 0.7 s < 1.5 s Green Star Teaching Spaces - Primary schools 0.4 s to 0.5 s* Education – New drivers Green Rating Systems
  • 47. Design for Low Reverberation (China Green Campus) First Affiliated Primary School of Fuzhou Education College, located at Fuzhou, Fujian Province 2011-9-22 School Evidence Based Design
  • 48. GB 50118-2010: RT, reverberation time, for frequencies of 500 and 1000 HZ in normal classroom with volume ≤ 200m³ shall be ≤ 0.8s. After enhancement the RT is 0.54s, down 65% and meets the standard. Product: Acoustic ceiling tile, with NRC 0.60 School Evidence Based Design
  • 49. Objective Acoustical Modeling – EASE speech intelligibility, STI Product: Acoustic ceiling tile NRC 0.60 School Evidence Based Design
  • 50. Considerations of IEQ Design in Australian Schools 6
  • 52. For Speech to be Intelligible to the Students we must: 1.Design for Sound Clarity w/ Architecture & Acoustics 2.Protect Sound Clarity w/ Construction & Mechanical Design 3.Consider mechanical, transportation, and activity noise Hearing speech is not sufficient …. It must be understood! Education – Design for and protect speech Acoustic Comfort & IEQ
  • 53. Acoustic Comfort & IEQ Considerations for Design of Classrooms • design architecture for speech clarity with RT • design mechanical equipment for low noise (S/N) with dBA • design exterior construction with high transmission loss (environmental noise) with OITC • design interior construction for high transmission loss (activity noise) with STC

Editor's Notes

  1. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  2. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  3. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  4. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  5. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  6. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  7. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  8. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  9. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  10. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  11. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  12. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.
  13. AIA members will receive one credit for taking this course. It qualifies for the new required credits for Sustainable Design.