listening to leed - ncacncac.com/documents/ncac-leedpresentation_001.pdfrenewable energy, 7.5%...

Listening to LEED®

Acoustics and Sustainable Design

James Scott Brew, FCSI, AIA, LEED APPrincipal, Built Environment TeamRocky Mountain Institute

NCAC Meeting, December 3, 2007, New Orleans, LA

o

TMabundance by design

Agenda

• Brief LEED® Overview

• LEED® Growth & Use

• LEED® & Your Work

! Some Specific Examples

• LEED® Is Not Enough

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What is RMI?

Rocky Mountain Institute is an entrepreneurial nonprofit organization that fosters the efficient and restorative use of resources to make the world secure, just, prosperous & life sustaining.

Research & Consulting Built Environment

Breakthrough DesignMOVE

Energy & Resources

Education & Outreach

Strategic Influence

Teams

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RMI Overview

! ~70 staff

! Offices in Snowmass and Boulder, Colorado, USA

! 25 year history

! Internationally recognized

! Specialize in all aspects of sustainable design

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Built Environment Team Services

" Sustainable Design Consulting

" Energy Design and Analysis

" Daylighting Design and Analysis

" LEED Advisor Resource

" GreenFoot TM Evaluation

" Sustainable Guideline Development

" Charrette Coordination and Facilitation

" Green Building Seminars and Workshops

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RMI LEED® Experience

" Official Reviewers on behalf of the USGBC• Have reviewed hundreds of projects

" All staff are LEED! Accredited

" 2 staff members are USGBC Faculty

" Led 50+ LEED® projects in-house

" Worked on ~1/3 of all projects certified at the platinum level

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“Making the Case” for Green Buildings

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Now Showing!

Screened at greenbuild® early Nov.--Release date: Soon

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LEED® Overview

• Created by the US Green Building Council- Non-profit, formed 1993

• First Released in 1999

• USGBC’s Premier Green Building Rating System- Third Party Validation

- Consensus Based Evolution

- Transparent Process--Balloted

- Designed to “Transform the Market”

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LEED® Overview

• Sustainable Sites (1p/14c)

• Water Efficiency (0p/5c)

• Energy & Environment (3p/17c)

• Materials & Resources (1p/13c)

• Indoor Environmental Quality (2p/15c)

• Innovation & Design Process (0p/5c)

(prerequisites/credits)

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LEED®-NC v. 2.2Possible Points 14 Possible Points 13

Y ? N Y ? N

Y Prereq 1 Construction Activity Pollution and Prevention Y Prereq 1

Credit 1 1 Credit 1.1 1



Credit 4.1 1 Credit 2.1 1








Credit 7.1 1 Credit 6 1


Credit 8 1

Possible Points 15Possible Points 5 Y ? N

Y ? N Y Prereq 1

Credit 1.1 1 Y Prereq 2


Credit 2 1 Credit 2 1



Credit 4.1 1

Possible Points 17 Credit 4.2 1

Y ? N Credit 4.3 1

Y Prereq 1 Credit 4.4 1

Y Prereq 2 Credit 5 1

Y Prereq 3 Credit 6.1 1






Credit 2.1 1

Credit 2.2 1 Possible Points 5Credit 2.3 1 Y ? N





Credit 2 1

Reduced Site Disturbance, Protect or Restore Habitat

Rapidly Renewable MaterialsCertified Wood

Recycled Content, 10% (post-consumer+ 1/2 post-industrial)Recycled Content, 20% (post-consumer+1/2 post-industrial)Regional Materials , 10% Extracted, Processed & Manufactured RegionallyRegional Materials , 20% Extracted, Processed & Manufactured Regionally

Reduced Site Disturbance, Maximize Open SpaceStormwater Management , Quantity Control

Low-Emitting Materials , Paints and Coatings

Minimum IAQ Performance

Environmental Tobacco Smoke (ETS) Control

Water EfficiencyIndoor Environmental Quality

Construction IAQ Management Plan , During ConstructionConstruction IAQ Management Plan , Before OccupancyLow-Emitting Materials , Adhesives & Sealants

Outdoor Air Delivery MonitoringIncreased Ventilation

Innovation in Design : LEED™ Accredited Professional

Water Efficient Landscaping, Reduce by 50%Water Efficient Landscaping, No Potable Use or No IrrigationInnovative Wastewater Technologies

Water Use Reduction, 20% ReductionWater Use Reduction, 30% Reduction

Innovation & Design Process

Daylight & Views, Views for 90% of Spaces

Innovation in Design :

Controllability of Systems, Lighting

Innovation in Design : Innovation in Design :

Controllability of Systems, Thermal ComfortThermal Comfort, DesignThermal Comfort, VerificationDaylight & Views, Daylight 75% of Spaces

Renewable Energy, 7.5%Renewable Energy, 12.5%

Optimize Energy Performance, 42% New / 35% ExistingRenewable Energy, 2.5%

Fundamental Building Systems CommissioningLow-Emitting Materials , CarpetLow-Emitting Materials , Composite Wood & Agrifiber ProductsIndoor Chemical & Pollutant Source Control

Stormwater Management , Quality Control

Light Pollution Reduction

Heat Island Effect, Non-Roof

Optimize Energy Performance, 28% New / 21% ExistingOptimize Energy Performance, 21% New / 14% Existing

Minimum Energy PerformanceFundamental Refrigerant Management

Optimize Energy Performance, 14% New /7% Existing

Optimize Energy Performance, 35% New / 28% Existing

Materials & Resources

Construction Waste Management , Divert 50% from LandfillConstruction Waste Management , Divert 75% from LandfillResource Reuse, 5%

Sustainable Sites

Green Power

Enhanced CommissioningEnhanced Refrigeration Management

Heat Island Effect, Roof

Alternative Transportation, Public Transportation Access

Alternative Transportation, Low emitting and fuel-efficient vehicles

Measurement & Verification

Energy & Atmosphere

Alternative Transportation, Parking Capacity

Storage & Collection of RecyclablesSite SelectionDevelopment Density & Community ConnectivityBrownfield Redevelopment

Building Reuse, Maintain 75% of Existing Walls, Floors and Roof

Alternative Transportation, Bicycle Storage & Changing Rooms

Building Reuse, Maintain 100% of Existing Walls, Floors and RoofBuilding Reuse, Maintain 50% Interior Non-Structural Elements

Resource Reuse, 10%

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Each credit identifies the following:

# Intent# Requirements# Submittals# Technologies and Strategies

Responsible parties will sign a Letter Template declaring that they meet the requirements of the credit.

Final credit achievement is based on intent.

LEED® Credit Format

LEED-NC v. 2.2 Reference Guide

LEED-NC Letter Template

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LEED® Overview

Current Family of LEED Products

LEED-Schools, (Released earlier this year--1st to include acoustics!)LEED-Homes, (Pilot completed, release planned soon)

- Multi-Family over 3 stories, pilot through 2008

LEED-Neighborhood Development, (Pilot now, release early 2009)LEED-Healthcare, (Public comment period now--ends mid-Dec.)LEED-Retail, (NC, CI in pilot now)

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LEED® Use

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LEED® Growth

Used in all 50 States

Adopted by 24 States

Adopted by 90 Local Governments

Used in 41 Countries

46 percent LEED projects are owned by federal, state and local governments

38,710 LEED Accredited Professionals

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USGBC Membership

steady growth

in the first 5 years

huge

growth

in the

last 5

years

19961996 19971997 19981998 19991999 20002000 20012001 20022002 20032003 20042004 20052005 20062006

61 102 158268

570

1137

2370

3532

4970

5832

76007600

T

O

T

A

L

M

E

M

B

E

R

S

USGBC

membership

growth reflects

the expansion

of green

buildings in

the market

2007

10,735

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US Building ImpactsU.S. Building

Impacts:

12%Water Use

30%GreenhouseGas Emissions

65%Waste

Output

70%Electricity

Consumption

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40% of World’s energy consumption

33% of CO2 emissions

40% of SO2 emissions

50% of chlorofluorocarbon (CFC) production

25% of virgin wood harvesting

17% of fresh water consumption

40% of landfill volume (construction waste)

Worldwide Building Impacts

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LEED® Impacts

ENERGY

SAVINGS

30%

CARBON

SAVINGS

35%

WATER

USE

SAVINGS

30-50%

WASTE

COST

SAVINGS

50-90%

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LEED® Impacts

20%

BETTER TEST

PERFORMANCE

SCHOOLS

EARLIER

DISCHARGE

HOSPITALS

INCREASED

PRODUCTION

FACTORIES

2-16%

PRODUCTIVITY

INCREASE

OFFICES

INCREASE

IN SALES PER

SQUARE FOOT

RETAIL

Productivity

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$12 billion -

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LEED® & Acoustics - OverviewYour work & advice affects many if not most credits:

! Obvious areas include acoustical performance of spaces; RT, STC, dBA...

! Material property contributions to LEED

- Recycled Content, VOC’s, Regional Materials...

! Less Obvious

- Flame Retardants

- Toxicity

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LEED® & Acoustical ConsultingLEED-Schools: Indoor Environmental Quality

EQp3 - Minimum Acoustic Performance

Intent - Provide classrooms that are quite and in which teachers can speak to the class without straining their voices and students can effectively communicate with each other and the teacher

Requirements - Design core learning spaces to meet Reverberation Time (RT) requirements of ANSI Standard S12.60-2002, Acoustical Performance Criteria, Design Requirements and Guidelines for Schools. Also must meet the STC requirements, excepting windows, which must meet an STC rating of at least 35.

AND

Option 1 - Using annexes B-D of the referenced ANSI standard, achieve a maximum background noise level of 45 dBA.

OR Option 2 - Design learning spaces using methodologies listed in 2003 HVAC Applications ASHRAE Handbook, Chapter 47 on Sound & Vibration Control--achieve an RC (N) Mark II level of 37.

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LEED® & Acoustical ConsultingLEED-Schools: Indoor Environmental Quality

EQc9 - Enhanced Acoustic Performance (1-2 points)

Intent - Provide classrooms that facilitate better teacher-to-student and student-to-student communications.

Requirements - Design core learning spaces to meet Reverberation Time (RT) and Impact Insulation Class (IIC) requirements of ANSI Standard S12.60-2002, Acoustical Performance Criteria, Design Requirements and Guidelines for Schools. Also must meet the STC requirements, excepting windows, which must meet an STC rating of at least 35.

AND

Option 1 - Using annexes B-D of the referenced ANSI standard, achieve a maximum unoccupied background noise level of 40 dBA (1 point) 35 dBA (2 points).

OR Option 2 - Design learning spaces using methodologies listed in 2003 HVAC Applications ASHRAE Handbook, Chapter 47 on Sound & Vibration Control--achieve an RC level of 32 (1 point) 27 (2 points).

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LEED® & Acoustical Consulting

SUSTAINABLE SITES:

SSc1 - Site Selection

Selection of the site as it relates to external noise impacts the projects performance. And the effect of the project generated noise (construction, traffic, humans, HVAC equipment, etc.) on the surrounding environment, has sustainability impacts.

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WATER EFFICIENCY:

WE credits

Impacts from selection of flush-fixtures, plumbing pipe selection (material for noise reduction and environmental properties) and rainwater capture and re-use.

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ENERGY & ATMOSPHERE:

EA credits

Whole building, integrated design reduces mechanical system size and noise!


Cost Effectiveness Limit

Diminishing

Returns

Cumulative Energy Savings

Co

st

of

eff

icie

ncy

imp

rove

me

nts

Tunneling Through

the cost barrier . . .

. . . to even bigger and

lower initial cost savings

Tunneling Through the Cost Barrier

TMabundance by design TMabundance by design

Windows + $67,500

Daylighting + $18,000

Insulation + $17,200

Lighting + $21,000

HVAC - $160,000

TOTAL - $36,300

+ Energy Savings of $75,000/yr

Tunneling through the cost barrier...An example

Grand Forks Office Building

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MATERIALS & RESOURCES:

MR credits

MRc2.1-2.2 - Construction Waste Mgmnt.

MRc3.1-3.2 - Materials Reuse

MRc4.1-4.2 - Recycled Content

MRc5.1-5.2 - Regional Materials

MRc6 - Rapidly Renewable Materials

MRc7 - Certified Wood

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INDOOR ENVIRONMENTAL QUALITY:

EQ credits

EQc3.1-3.2 - IAQ Management Plans

EQc4.1-4.4 - Low Emitting Materials

- Adhesives, Sealants, Paints, Coatings, Carpets, Composite Wood & Agrifiber

EQc7.2 - Thermal Comfort Verification

- Opportunity for POE!

EQc8.1-8.2 - Daylight & Views

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INNOVATION & DESIGN PROCESS:

ID credits

IDC1.1-1.4 - Exceed Acoustical Performance Standards!

“+”ResourceProducing

ResourceConsuming

“-”

Regenerative

Restorative

Sustainable

Green / LEED

Standard Practice

Promotes:Whole Systems Thinking

Uses:Fragmented Technologies

Environmental Design Continuum

Resource Amount

Carbon NeutralityNet Zero Energy

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LEED® is not Enough!

SPECIES EXTINCTION:

! 137 species vanish everyday

! 50,000 species lost per year

! 50% of species loss is in rain forests

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LEED® is not Enough!PBT’s in Building Materials:

Persistent Bioaccumulative Toxins (PBT’s)

“The Nasty Nine”

$ Chlordane

$ Dieldrin

$ DDT

$ Hexachlorobenzene (HCB)

$ Mercury

$ Octachlorostyrene (OCS)

$ PCBs

$ 2,3,7,8 TCDD (Dioxin)

$ Toxaphene

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$ Dioxin (PVC)

$ Brominated and Halogenated Flame Retardants (PBDE’s)

$ Perfluorochemicals (PFC’s)$Teflon, Scotchguard, Stainmaster and other treatments

PBDE’s:

•Nursing mothers in Texas all had detectable

levels in breast milk

•Found in sediments, polar bears, beluga

whales, seals, bird eggs, human milk, serum

and adipose tissue.

•Levels are doubling every two to five years in

the North American population.

•Some women are approaching levels that have

harmed newborn animals' developing brains

in laboratory tests.

•Very similar properties to PCBs/dioxins

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$ What products might contain polybrominated diphenyl ethers (PBDE’s):

$Fabrics

$Upholstery Foam

$Carpets

$Insulating Materials

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LEED® is not Enough!

COTTON:

" Cotton is responsible for the release of over US$2 billion of chemical pesticides each year.

" Cotton is responsible for 16% of global insecticides.

" An estimated 1 million to 5 million cases of pesticide poisoning occur every year, resulting in 20,000 reported deaths among agricultural workers and at least 1 million requiring hospitalization.

" Only 0.15% of the worlds organic cotton is guaranteed to be pesticide free. Demand for organic cotton is estimated to be between $800 million and $1 billion USD.

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Opportunities Abound!How does Mirra qualify as an earth-friendly chair?Like all of our new designs, Mirra was scrutinized from top to bottom to make sure its material chemistry, recyclability, ease of disassembly, and packaging are environmentally friendly.

Additionally, the chair has been evaluated according to our own Design for the Environment (DfE) protocol, developed in conjunction with McDonough Braungart Design Chemistry. This process resulted in a design that is PVC-free, has a high level of recycled content, and is highly recyclable.


Early Impact Matters Most

Performance Impact

TimeProject START

Project FINISH

HIGH

LOW

Level of Effort

Leve

l of E

ffort

/ Im

pact

HUMAN NATURE

We are the people we have been waiting for…

[email protected] 720.891.0363

- Amory Lovins

Thank You!

James Scott Brew, FCSI, AIA, LEED AP

Principal, Built Environment TeamRocky Mountain Institute

[email protected] ☀ 303/567.8557abundance by design™

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