designing for sustainability

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Chapter. 11. Designing for Sustainability. Objectives. Explain the difference between sustainability and green building. List six major sustainable design concepts and explain how they apply to residential design. Explain the concept of building information modeling. - PowerPoint PPT Presentation

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Page 1: Designing for Sustainability
Page 2: Designing for Sustainability

11Designing for Sustainability

Chapter

Page 3: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Objectives• Explain the difference between sustainability and

green building.• List six major sustainable design concepts and

explain how they apply to residential design.• Explain the concept of building information

modeling.• Describe two national certification programs for

sustainable housing.

Page 4: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Sustainability vs. Green Building

• Sustainability: meeting human need for food, housing, other needs and wants, without using up nonrenewable resources, and without negatively affecting the environment– Sustainable building

• Green building: strives to efficiently use materials and processes, reduce pollution, and cause little damage to environment

Page 5: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Sustainability vs. Green Building

• Sustainability identifies general concepts relating to green building technology and sustainable design

• Many buildings being constructed using environmentally friendly practices are still in “green building” phase

Page 6: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Sustainable Design Concepts

• Consider entire life cycle of the home– Design and construction stage, occupancy or use

stage, and end-of-life stage

• Avoid depleting (using up) natural resources• Prevent damage to the environment throughout

the building’s life cycle

Page 7: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Sustainable Design Concepts

• Elements of sustainable building design:– Proper site selection– Efficient placement of house on site– Use of sustainable materials and processes– Improved energy choices and use– Water conservation and protection– Low-impact or no-impact operation and

maintenance– Adaptability to meet multiple purposes

Page 8: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Site Selection

• Select site before home is designed• Consider impact of development on area’s

ecosystem– Multiple effects no matter where building is placed

on site

• Consider amount of energy needed for building and then living on site

Page 9: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Locating the House

• Determine building location and orientation on site• Use existing plants, sun and wind patterns to your

advantage• Plan to pave as little of site as possible

Page 10: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Locating the House

• Choosing a proper site.

(Nejron Photo/Shutterstock.com)

Page 11: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Architecture

• Aluminum: A sustainable material– 100% recyclable– Can be recycled over and over– A simple process that saves energy– If placed in a landfill, aluminum items may take

hundreds of years to decompose– Recycled aluminum items often used in the home

Green

Page 12: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Designing a Sustainable Home

• Design stage critical to long-term sustainability• Choose materials and building processes that

minimize impact on environment– Reclaimed or recycled building materials

• Reduce or eliminate use of toxic substances

Page 13: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Reclaimed and Recycled Building Materials

• Reclaiming involves salvaging materials from buildings being torn down and other sources

• Recycling involves using materials made of recycled materials and recycling the homes materials at the end of its useful life– For example, fly ash used to make concrete

Page 14: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Toxic Substances to Avoid

• Polyvinyl chloride (PVC) – Creates dioxins during production and disposal– Dioxins and heavy metals known as persistent

bioaccumulative toxicants (PBTs)– Relatively green alternatives available

• Volatile organic compounds (VOCs) • Semi-volatile organic compounds (SVOCs)• Pressure-treated lumber

Page 15: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Greenwashing

• Green building popularity leads manufacturers to make false claims about products being green or environmentally friendly– Known as greenwashing

• Read labels carefully, research products or ingredients before purchasing

Page 16: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Energy Choices

• Net zero energy buildings rely on renewable energy sources, avoid nonrenewable energy sources

• Renewable energy includes solar energy, geothermal energy, and energy efficient techniques such as weatherization, daylighting, solar harvesting

Page 17: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Energy Choices

•Weatherize door and window openings.

(LesPalenik/Shutterstock.com)

Page 18: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Water Conservation and Protection

• There is a fixed amount of water on Earth• Fresh water supplies are in demand• To conserve and protect fresh water supplies:

– Use water-efficient plumbing fixtures such as low-flow toilets

– Install irrigation systems that use gray water

Page 19: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Operation and Maintenance

• Low-cost design ideas that increase sustainably over the lifetime of the home – Install only ENERGY STAR appliances– Use water-efficient landscaping methods, such as

xeriscaping and irrigation systems– Do not overwater

Page 20: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Adaptability

• Homes are sometimes no longer needed or wanted

• Flexible structures can be repurposed– Design homes to meet ADA standards– Use movable walls

• Some homes must be torn down– During original design stage, use recyclable or

reusable materials

Page 21: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Building Information Modeling (BIM)

• Building Information Modeling, or BIM, is process that utilizes software tools to streamline building design, analysis, management

• Provides a way of looking at building projects that includes design, construction, and also managing the building throughout life cycle

Page 22: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

Green Home Certifications

• Several national organizations and associations offer certification that a home meets specific “green” standards – Leadership in Energy and Environmental Design

(LEED) – National Green Building Certification Program– ENERGY STAR

Page 23: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

LEED for Homes Program

• In 2000, US Green Building Council (USGBC) developed certification program called LEED Green Building Rating System

• LEED for Homes rates buildings on different factors to achieve a “whole-building approach” to sustainability

Page 24: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

LEED for Homes Program

• First page of LEED for Homes Simplified Project Checklist.

(US Green Building Council)

Page 25: Designing for Sustainability

Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc.

National Green Building Certification Program

• Offered by Research Center at the National Association of Homebuilders (NAHB)

• Approved by the American National Standards Institute (ANSI)