Live Well,Live Green,

Indiana Park and Recreation Conference, West Lafayette, IndianaJanuary 21, 2010

Build Green

Session Outline

1. Understand why we need to change our building habits

2. Find out where to start on your next green building improvement

3. Learn how you can implement cost-effective green building improvements

Learning Objective To gain an understanding of how to incorporate green building strategies.

1. Sustainable Site

2. Water Efficiency

3. Energy and Atmosphere

4. Materials and Resources

5. Indoor Environmental Quality

Why WeNeed toChange Our Building Habits

1804 – 19271 to 2 billion people

1996 – 20086 to 7 billion people

1.

“ . . . buildings are the biggest source of energy use and greenhouse gas

emissions, which in turn impact the world’s climate

changes.”Green Building: Essential Design Strategies for a

Sustainable Future

Barbara A. Nadel, FAIA, Architectural Record, November 2006

“Global warming is not caused by natural forces beyond our control.

. . . human beings are the cause of the problem. And so it is our

responsibility to fix it.”

An Inconvenient TruthAl Gore

Total Energy Use

Oil Dependence

The Middle East holds 61% of the world's proven oil reserves.  The Middle East holds 61% of the world's proven oil reserves.  North America has 5%.North America has 5%.

Increasing Oil Demand

Unless there is a dramatic effort to change our consumption, energy demand is expected to rise by nearly 20 percent by 2030 according to

the Department of Energy.

Source: Energy Information Administration

The amount of U.S. greenhouse gases flowing into the atmosphere, mainly carbon

dioxide from burning fossil fuels, increased last year by 1.4 percent after a decline in 2006.

Source: U.S. Energy Department

Associated Press, 12/03/08

“Carbon emissions have been

growing at 3.5% per year

since 2000, up

sharply from the 0.9

percent per year in the

1990s.”

02/15/09

EBN 09/09

01/23/09

Climate Change Quickens, Seas Rise

Global warming is happening faster than expected and at worst could raise sea levels by up to 6-1/2’ by 2100 according to a group of scientists.

November 24, 3009

Where Do We Start to Build Green?2.

A leading-edge system for certifying the greenest performing buildings in the world.

www.usgbc.org

Heating and cooling are generally the major expenses (30%-35%) associated with the operation of a building.

Save Water and Energy

Average Savings

LEED

Rating

# of Bldgs.

Water Efficiency

Energy Optimization

Certified 64 30.1% 29.4%

Silver 49 30.4% 33.3%

Gold 46 32.5% 40.0%

Platinum 9 34.4% 55.0%

Total 168Environmental Design + Construction,

December 2006

Save Green

Measured energy savings on LEED facilities average 28% more than non-certified buildings.

2008 New Buildings Institute Study of 121 new LEED

Facilities occupied for at least one year

Green Building Benefits

Reduce or eliminate negative environmental impacts Reduce operating costs Enhance work productivity Reduce or eliminate indoor air quality problems

Why would anyone choose to build in a way that isn’t comfortable, healthy, and energy efficient?

Ways to Make Your Building Improvements

Green

3.

#1 Build a

LEED Project

Level of LEED Rating

Ave. Cost Premium

Certified 0.66%*

Silver 2.11%

Gold 1.82%

Platinum 6.50%

Environmental Design + Construction, December

2006

Green buildings are good for the environment, people, and

they provide life-cycle cost savings.

The Bottom Line:

#2 Incorporate Cost-

Effective Green Building Strategies

1. Sustainable Site•Avoid prime farmland

•Channel development to urban areas with existing infrastructure•Rehabilitate brown-fields

•Locate project within ½ mile of an existing or planned and funded public transportation system

•Provide bicycle racks and shower facilities•Protect or restore habitat

•Maximize open space•Reduce or eliminate water pollution by reducing impervious cover and increase

on-site infiltration

Install Bicycle Racks

• Provide bicycle racks for 5% or more of all building users during peak time– Reduce automobile use that contributes to air

pollution– Reduce dependency on oil– Reduce impact of oil refining – Promote well-being

Drive Less

Walk, bike, carpool or take public transportation more often. You’ll save one lb of CO2 for every mile you don’t drive.

Your car will emit as much CO2 in a year as your entire household = 12,000 lbs.

walkscore.com90 – 100 = Walkers’ Paradise

70 – 89 = Very Walkable

50 – 69 = Somewhat Walkable

25 – 49 = Car-Dependent

0 – 24 = Car-Dependent (driving only)

Walk Score calculates the walk-ability of an address by locating nearby stores, restaurants, schools, parks, etc.

Walk Score measures how easy it is to live a car- lite lifestyle – not how pretty the area is for walking.

Provide Hybrid Parking

• Intent: Reduce pollution and land development impacts from automobile use

• Strategy: Provide preferred parking for low-emitting and fuel-efficient vehicles for 5% of the total

parking capacity of the site

• Example: 200 parking spaces x 5%=10 preferred parking spaces

Heat Island Effect: Environmental Issues

The use of dark, non-reflective surfaces for parking, roofs, walkways and other surfaces contributes to heat island effects. As a result of heat island effects, ambient temperatures in urban areas can be artificially elevated by more than 10 degrees when compared with surrounding suburban and undeveloped areas. This results in:– increased cooling loads in the summer;

– larger HVAC equipment;

– increased electrical demand;

– more greenhouse gas + pollution; and

– increased energy consumption.

Urban heat islands can maintain temperatures 6 – 8 degrees above that of surrounding rural land.

EBN September ‘09

Heat Island Effect: Non-Roof

Use the following for 50% of the site hardscape:• Shade • Paving materials

with a Solar Reflectance Index (SRI) > 29

roads, sidewalks, courtyards and parking lots

USGBC Sustainable Site, Credit 7.1

Paving Materials’ SRI

Material Reflectance SRI

New Gray Concrete 0.35 35

Weathered Gray Concrete 0.20 19

New White Concrete 0.70 86

Weathered White Concrete 0.40 45

New Asphalt 0.05 0

Weathered Asphalt 0.10 6

Solar Reflectance Index (SRI) is the measure of a material’s ability to reject solar heat, as shown by a small temperature rise.

Improve the curb appeal

Did You Know?

Proper tree placement can reduce air-conditioning costs by 30%

AIA, Vegetation for Sun Control

Green Step Web Video

Heat Island Effect: Roof

Use roofing materials having a Solar Reflectance Index (SRI) equal to or greater than the values of the table below for a minimum of 75% of the roof surface.

Roof Type Slope SRI

Low-Sloped Roof < 2:12 78

Steep-Sloped Roof > 2:12 29

USGBC Sustainable Site, Credit 7.2

Roofing Materials SRI

Material Solar Reflectance

Temperature Rise

SRI

Gray EPDM 0.23 68 21

Gray Asphalt Shingle

0.22 67 22

White Coating on Metal Roof

0.67 28 79

White EPDM 0.69 25 84

Rising temperatures lead to increased cooling requirements, requiring energy and causing

associated emissions.

new roof, new color + drainage

White EPDM SRI = 84Gray EPDM SRI = 21

Make Your Roof “C-o-o-l” Metal roofs can reflect up to 70% of the

sun’s energy and reduce cooling costs by up to 20%

Reduce HVAC system size due to smaller peak cooling loads

Green Roofs• Reduces roof heat gain (Sunny

95 degrees, conventional roofs reach 175 vs green at ambient air temperature)

• Reduces heat island effect• Reduces indoor sound by as

much as 40 decibels

• Reduces storm water runoff• Extends roof life, no u.v.

rays• Energy conservation plants and 4

inches of growing medium reduce indoor temperatures 6 to 8 degrees and can reduce air-conditioning costs 25 to 50% in single story buildings

• Live roof replacement every 20 years u.v. rays breaks down container/tray systems

www.greenroofs.com

4 Simple Way to Reduce the Heat Island Effect• Increase landscaping and shade from tree planting

• Reduce paved surfaces• Incorporate roofing with reflective membranes or coatings

• Install light-colored pavement and walkway surfaces

Less than 3 percent of the water on Earth is fresh;

much of that is unreachable in glaciers, ice-caps or deep in the earth.

2. Water Efficiency

`

Climate change will likely increase

precipitation in some places

while reducing it in others,

particularly the West, where

populations are growing the

fastest.Environmental Building News, September 2008

Limit or eliminate

the use of potable

water for landscape irrigation.

“The roughly 90 million lawnmowers,

weed trimmers, leaf blowers, and

other small-engine lawn and garden tools in

the U.S. spew out approximately 5% of the nation’s air pollution, according

to the U.S. Environmental Protection Agency.”

Environmental Building News, July 2005

What’s Wrong With the Conventional

Lawn?

Use Native Landscaping

1. Reduced air pollution

2. Reduced nutrient runoff, no fertilizer

3. Reduced pesticide use

4. Increased biodiversity

5. Lower annual operating costs

“Some experts say that water may be an even more challenging problem than energy in the coming decades . . . ”

Environmental Building News, September 2008

Lower Volumes of Potable Water

+ Less Water for Water Treatment

Energy Savings and

Carbon Pollution Reduction

Reduce Water use by 20%-30%

Intent: Maximize water efficiency within buildings to reduce the burden on municipal water supply and waste water systems.

Strategy:

Use high-efficiency

fixtures and occupant

sensors to reduce the potable

water demand.

Greening Locker Rooms

1. Install fixtures high a high water efficiency2. Provide touch-less fixtures3. Purchase products with a longer lifecycle4. Consider environmentally-friendly products5. Purchase products with a high recycled content to conserve resources

and prevent overflow in landfills

Low-Flow Showerheads• Aging showerheads using

as much as 8 gallons per minute

• Although the federal maximum is 2.5 gpm, models from Bricor, Delta, and Niagara offer satisfying showers with 1.6 gpm or a a 36% water savings over a 2.5 gpm showerhead.

Water Saving Fixtures

Toilet flushing is the largest single use of water in most buildings.

Zurn’s EcoVantage uses one pint, or 0.125 or 1/8 gallon of water per flush. They are all sensor-controlled (battery or hard-wired) and have a manual button override.

www.zurn.com

1.28 gallons of water per

flush

Four independent, real-world studies . . . have all

shown that sensor-activated faucets increase water use by anywhere from 30% to

100%. Sensor-activated flushes on

toilets and urinals also increase water use, due

mainly to “phantom flushes”.

Environmental Building News – April 2009

4 Simple Ways to Save Water + Costs• Use native and or drought resistant landscape

• Use high-efficiency water fixtures• Use low-flow toilets + urinals• Consider automatic sensors

3. Energy + Atmosphere

Heating and cooling costs are generally the major expenses (30% - 35%) associated

with the operation of a building.

USGBC

Oil Prices and the Future

Prices will start to head up in Spring 2009

Drivers are taking to the road again . . . today’s low prices plant the seed of future hikes

By December 2009, the price per barrel will average $70 or $2 a gallon

2010, growing oil consumption will push prices to $100 a barrel.

Kiplinger Connection, AIArchitect This Week, December 12, 2008

Complete an Energy Audit

www.energysavers.gov

Learn– Where you are losing

energy– How to conduct your

own audit– How to hire a

professional

Or, choose the topic you want to explore:

• Tax Credits + Rebates• Designing + Remodeling• Heating + Cooling• Landscaping• Water Heating• Appliances + Electronics• Electricity• Insulation + Air Sealing• Lighting + Day-lighting• Windows, Doors + Skylights

DSIRE

Database of State Incentives for Renewables & Efficiency

DSIRE is a comprehensive source of information on state, local, utility, and

federal incentives that promote renewable energy and energy efficiency.

www.dsireusa.org

Financial Incentives for Renewable EnergyComparison Chart

State Rebates Grants Loans

California 7 state38 utility3 local

1 state 2 state1 utility4 local

Illinois 1 state 3 state1 private

1 state

Indiana 4 utility 1 state 1 utility

U.S. Totals 307 65 150

Optimize Energy Performance

Intent: Reduce environmental and economic impacts associated with excessive energy use.

Strategies:1. Renewable Energy Systems2. Building Orientation3. Add Insulation 4. Solar Control Window Films

Mechanical Systems AnalysisHVAC Description Installation

CostAnnual Electrical Usage (kW-hr)

Annual Gas Usage (therms)

Annual HVAC Utility Costs

Payback Period (Years)

50-year Payback

Replacement Cost

Base: 4-pipe w/VAV air distribution

$1,788,136 297,500 21,500 $45,500 NA NA $300,000/ 25 yr.

Options Base + Cost

Minimal Future Provisions

$25,000 297,500 21,500 $45,500 NA NA NA

Energy Recovery +$125,000 291,600 12,500 $36,400 16 $225,000 $7,500/5 yr.

Ice Thermal Storage

+$100,000 312,500 21,500 $42,250 31 $62,500 None

Geothermal +$450,000 421,000 0 $32,650 29 $42,500 $225,000/ 20 yr.

Thermal Energy (Ice) Storage

• Benefit of shifting loads from daytime hours, when most cooling loads occur, to night-time, when electricity demand is lower and costs are often less.

• Off-peak electricity generation is cleaner than peak energy.

• Required space and height requirements adds to the building construction cost.

• TES systems can reduce first costs by allowing chillers or packaged air-conditioners to be down-sized.

Saving Money with Off-Peak Electricity

Geo-Thermal Heat Pumps

• Ground-source heat pumps (GSHPs), often called “geothermal heat pumps” exploit the relatively stable temperatures found below the surface, either depositing or extracting low-intensity heat.

• Ground source heat pumps can be run in reverse to provide heating as well as cooling.

• Large systems typically use drilled wells that may range up to 1,000 feet, using groundwater as the primary source of stable temperatures.

www1.eere.energy.gov/geothermal

Future Electricity Costs?

The cost of fuel and electricity will soar, despite swift growth in alternative sources of energy, such as solar, geothermal, and wind power.

New regs will add 20% or so to electricity rates by 2020. . . and that’s over and above any increases anticipated from changes in supply and demand.

The average electricity cost for residential, commercial and industrial users may be 50% higher than today . . . more in areas such as the Midwest and Southeast, where coal fired power dominates. There . . . a 100% hike.

Kiplinger Connection, AIArchitect This Week, 09/25/09

Solar Power Proposal

Financial Analysis Installation – Year Costs

Average Monthly Utility Savings (over 25-yr.

system life)

$278 Gross System Cost ($7.05/watt DC, $8.30/watt AC)

$100,096

Utility Savings Over System Life

$83,352 Installer Contract Cost

$100,096

Total Life-Cycle Payback (Cash Flow compared to

Net Cost)

132% Incentives/Taxes ($50,048 + $1,485 installer rebate)

$51,533

Rate of Return on Cash Invested

+2.6% Net Cost $48,563

Levelized Cost of Solar Energy

$0.09 / kWh Net Cost per Watt $34.5/watt DC$4.03/watt AC

424 tons of CO2 Reduction in Green House Gas Emissions

3% of Electric Usage Supplied by Solar

66 photovoltaic panels, 8,100 sq. ft. of roof area

Equivalent CO2 Reductions

• Small Car: 1,436,949 miles

• Medium Car: 770,727 miles

• SUV: 540,000 miles

• Air Miles: 874,021 miles

• Trees Planted: 16,956

Over 25 Years based on 14.19 kW Solar Power System

Roof Options + Solar Power

Option 1: Flat• Proposed 84 SRI > 78

• Increases photovoltaic panel use

• Potential ponding + water leaks

• Economical roof system

• 20 yr. single-ply membrane roof

Option 2: Sloped• Proposed 32 SRI > 29

• Limits photovoltaic panel use

• Potential ice dams in d.s.+gutters

• More costly roof system

• 20 yr. standing-seam metal roof

Thin film PV modules are only 10% efficient so a larger roof area is required versus a crystalline array with the same electrical rating.

Peel and Stick PV Products

The National Renewable Energy Laboratory maintains a useful online tool for calculating the annual energy production of PV arrays.

www.pvwatts.org

Purchase Green Power

www.renewablechoice.com

10,000 sq.ft, 1-story bldg. 35% green power for 2 years = $414.50

70% green power for 2 years = $710.57

Building Orientation

Elongate the building on the east-west axis with small windows on the north side and large windows on the south side to minimize heat loss and maximize solar gain during the winter.

Minimize east and west facing windows. The sun is

low in the morning and evening, creating a lot of

glare and solar heat gain.

Knauf InsulationShelbyville, INwww.ecobatt.us

Formaldehyde-free binderContains no dyes

Solar Control Window Films

• Window films from companies such as V-Kool and 3M are an excellent retrofit measure for reducing solar heat-gain

• Films can filter out half the heat of sunlight while allowing most of the visible light through.

One-third or more of a building’s electrical consumption may go to lighting, and energy saved

in lighting also reduces cooling loads.EBN April 2009

Replacing lamps, ballasts, luminaires, or all three, can lead to significant energy savings

Use colors of the same family to create tonal harmonies.

Changing a Light?

Replacing one light bulb with a compact fluorescent light bulb will save 150 pounds of carbon dioxide a year

The Energy Independence and Security Act of 2007 will phase out conventional incandescent lamps by 2014.

Replacing a 60 watt incandescent bulb with a 60 watt compact fluorescent lamp (CFL) results in a 75% energy savings. Reducing energy usage also reduces greenhouse gases from power

plants. By using CFL you are having a positive impact on climate change.

Incandescent = 1,000 hours, 60 watts of energy usedCFL = 10,000 hours, 13 watts of energy used

Cradle to C

radle Certification

4 Simple Ways to Save Energy Costs• Complete an energy audit

• Investigate on-site / renewable energy systems• Add insulation

• Investigate DSIRE for light replacement grants

4. Materials + Resources

Recycle, Reuse, Reduce

Recycling 2 lbs saves 130 lbs of CO2 from the air.

You can save 2,400 lbs of CO2 per year by recycling just half of your household waste.

Recycle copy paper for printing on the other side.

www.rcpworksmarter.comRubbermaid Commercial

About 80% of what Americans throw away is recyclable, yet our recycling rate

is only 28 percent.DoSomething.org

39% of waste in the average American household is paper. Paper made from

virgin materials contributes to deforestation and global warming, and

often ends up in a landfill.GreenAmericatoday.org

Recycling Saves Energy

Americans throw away 40,000 plastic bottles every minute. (19.2 million bottles in 8 hrs.)

Recycling doesn’t use more energy than making a new product.

Recycling aluminum saves 95% of energy use, plastic saves 60% – 75% and paper 55% – 75%

Recycled content refers to the portion of materials used in a product that have been diverted from the

solid waste stream.

Post consumer content is generally viewed as offering greater environmental benefit than pre-consumer content.

Environmental Building News

December 1, 2008

Reduce

Building Recycling . . .

Extends life cycle of existing building stockConserves resourcesRetains cultural and historic resources Reduces waste and landfill impactReduces environmental impact of new buildings

as they relate to materials manufacturing and transport

Maintain Existing Walls & Roof

Canopy $17k

Tuckpointing + Cleaning

$25k

Doors + Windows

$57k

Site Work $54k

Landscaping $7k

Total Cost $160k

2005 dollars4,640 square feet

Recycle Construction

WasteUSGBC December 2008

• Materials Use– Buildings use 40% of

raw materials globally.• Waste

– The EPA estimates that 136 million tons of building-related construction and demolition debris was generated in the U.S. in a single year. Compare that to 209.7 million tons of municipal solid waste generated in the same year.

A LEED project can divert 85% of on-site generated construction waste from a landfill.

Keep it CompactMultipurpose

Stack uses

Eliminate dead

space

Minimize construction cost, conditioned space, lighting, material/resource consumption

Keep site disturbance to a minimum

Eliminate Floor Finishes

Concrete finishing options are less expensive than

carpet or tile and easier to clean and maintain

Eliminates or reduces use of potentially harmful chemicals

Risk of injury may a drawback depending on the concrete finish

Design an Open LayoutReduces construction

cost

Improves daylight and

natural ventilation

Reduces duct runs

Minimizes material

use

Eases space

reconfiguration

Buy Recycled Products

Intent:

Increase demand for building products that incorporate recycled

content materials, thereby reducing impacts

from extraction and processing of virgin

materials.

Use Regional MaterialsIntent:Increase demand for building materials and products that are extracted and manufactured within 500 miles of the project site, thereby supporting the use of indigenous resources and reducing the environmental impacts resulting from transportation.

Brick is Green and a Natural

Sustainability

• Life cycle of 100+ years

• Fire resistant• Impact resistant from

wind borne debris and or projectiles

• Resistant to sound transmission

Monticello, built in 1769, home of Thomas Jefferson

Energy EfficiencyBrick buildings are more energy

efficient due to it’s thermal mass

Thermal lag keeps the inside temperature more moderate temperature level when outside temperatures change and thus reduce peak heating and cooling loads

ManufacturingLocated close to production to reduce transportation costs + effects

Automation to reduce energy

Recycling

Life Cycle Analysis

4 Simple Ways to Conserve M + Rs• Consider building recycling

• Buy recycled products• Use regional materials

• Consider life-cycle versus initial costs

5. Indoor Environmental

QualityAmericans spend

on average 90% of their time indoors

where the U.S. EPA reports that

levels of pollutants may run 2 to 5

times higher than outdoor levels.

Use Low-Emitting Materials

Intent:

Reduce the quantity of indoor air contaminants that are odorous, irritating and/or harmful to the comfort and well-being of installers and occupants.

Volatile Organic Compounds

VOCs are carbon compounds that participate in atmospheric photochemical reactions (excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonates, and ammonium carbonate).

We learned that VOCs are any of those carbon-based compounds that smell strong and readily evaporate – items like acetone, rubbing alcohol and paint.

Paint

Emissions of volatile organic compounds and other potentially toxic components from carpets have been widely recognized as an indoor air quality problem.EBN, June 2007

Carpet covers 70% of U.S. floors.EBN June 2007

Choose carpeting and carpet cushion that meet Carpet Rug Institute (CRI) Green

Label Plus standards for emissions or better

Install carpet with low-VOC adhesive or use mechanical fasteners

Before purchasing carpet, ensure that the carpet can be recycled at the end of its life

through an established program

www.interfaceflor.com

• Interface is the largest modular carpet manufacturer in the world

• 40% - 80% recycled content• Mission Zero – achieve a zero

environmental footprint by 2020 by 2020

Purge PVC From Your Life

Why? PVC is highly toxic throughout its life cycle, from manufacture to incineration. Potential hormone disrupters and other toxins can leach from PVC products, adversely affecting your health.

Action!Use the power of your wallet to send a message to companies that they need to stop manufacturing the “poison plastic.”

Spot It “Bad news comes in 3s”, refers to the number 3 recycling symbol displayed on many PVC products, especially packaging.

Building Approximately 75 percent of the PVC manufactured is used for building materials. Avoid vinyl windows and siding, plastic patio furniture, PVC-free recycled plastic lumber for decks and fences.

AvoidFormaldehyde

• Two glues or binders dominate the manufactured wood products industry: urea formaldehyde (UF) and phenol formaldehyde (PF).

• While UF binders are significantly less expensive than

PF binders, they give a lot more formaldehyde – a volatile compound that is classified as a known hum carcinogen.

• Formaldehyde’s other health impacts include respiratory problems; eye, nose and throat irritation; allergic reactions; and depression.

Rapidly Renewable ProductsPlybooPure from Smith + Fong is the first bamboo flooring to carry Forest Stewardship Council (FSC) certification and is made with

low-emitting, non-formaldehyde polyisocyanurate binder.

www.plyboo.com

TextilesO Ecotextiles are made from 100% organic cotton or other

sustainable grown fibers.www.oecotextiles.com

www.greenguard.org

Many attributes of buildings that are being shown to improve human performance and productivity are also characteristics of green buildings:

Intent:

Provide for the building occupants a connection between indoor spaces and the outdoors . . .

daylighting, views to the outdoors, improved air quality, and individual control of fresh air + comforts.

Daylight + Views

Daylighting• Open layout• Clerestory windows• Skylights• Translucent panels

Daylight Harvesting Can Reduce

Amount of artificial lighting and its: Associated energy costs Related carbon emissions

Higher Costs = Change

• Wal-Mart Supercenters and Sam’s Club stores have skylights with a surface area equal to about 3% - 5% of the floor area.

• Energy savings are gained by using day-lighting (skylights and clerestories) and sensors to dim or turn off artificial lights when natural light is sufficient.

Provide Lighting Control

Intent:Provide a high level of lighting system control by individual occupants or by specific groups in multi-occupant (i.e. classrooms or conference areas) to promote the productivity, comfort, and well-being of building occupants.

Public Space Lighting Control

Workstation Lighting ControlProvision of individual controls for lighting can lead to increased occupant comfort by enabling occupants to tailor the workspace to their individual needs.

Additionally, by reducing ambient space foot-candle levels and providing user controlled, flexible, task-appropriate lighting, the project may reduce the overall lighting energy costs and reduce heat loads associated with high foot-candle levels of indoor lighting.

Provide Thermal Control

Intent:To provide high level of thermal comfort system control by individual occupants or specific groups in multi-occupant spaces to promote the productivity, comfort and well-being of building occupants.

Strategies: Active Conditioning (e.g.

mechanical HVAC systems)

Passive Conditioning (e.g. natural ventilation)

Mixed-mode conditioning – employing a combination of active and passive systems

True or False

“People are healthier in spaces that are less severely conditioned.”

TrueLawrence Berkeley National Laboratory, EBN, October 2009

People get sicker in over-cooled and over-heated buildings. Cooler indoor temperatures in summer and warmer temperatures in winter consistently

correlated with more health symptoms.

Operable windows may be used in lieu of individual controls for

those occupants located within 20 feet

of the exterior wall and within 10 feet of either

side of operable window.

4 Simple Ways to Improve IEQ• Use low-emitting materials

• Provide lighting control• Provide thermal control

• Provide daylight and views

Get Connected

www.usgbc.org U.S. Green Building Council

www.greenguard.org GreenGuard Environmental Institute

www.EDCmag.com Environmental Design + Construction

www.buildinggreen.com Environmental Building News

www.aia.org American Institute of Architects

GreenBiz.com

Free weekly newsletter

Business

The Environment

The Bottom Line

www.aia.org/walkthewalk

Web Videos:#1 Water Conservation#2 Smart Controls#3 Radiant Heating and Cooling#4 Vegetation for Sun Control#5 Whole Building Approach#6 Green Tags#7 Energy Modeling#8 Green Roofs#9 Daylighting#10 Choosing Green Materials#11 Carbon Offsets#12 Deconstruction

Does Green Building Have an Impact?

The equivalent of 2008 LEED water savings could fill enough 32 ounce bottles to circle the Earth 300 times.

By 2020, LEED energy savings will amount to more than 1.3 million tons of coal equivalent each year, representing approximately 78 million tons of carbon dioxide avoided emissions.

Certified projects to date have specified a total of more than $10

billion of green materials, which could grow to $100 billion by 2020.

Green Building Impact Report 2008

Green Building

Strategies

1. Sustainable Site

2. Water Efficiency

3. Energy & Atmosphere

4. Materials & Resources

5. Indoor Environmental Quality

Thank Youand

Good Luck!

“ . . . consider the impact on the seventh generation.”

Iroquois law