Chapter 27 Green Building and Certification Programs Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. List the essential members of a green home building team. Explain why site selection and lot planning are important to a green home. List several factors to be considered in selection of green home products. Objectives Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Describe energy consumption considerations when making a green home plan. Identify sources of indoor pollution. Explain what is meant by best construction practices. Describe green certification programs. Objectives (Cont.) The U.S. Environmental Protection Agencys Energy Star Program Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. System in which all parts of building work together to Lessen impact on environment Reduce energy consumption Extend usable life of building with minimum maintenance Provides cost savings with lower utility bills Slows use of finite natural resources Reduces atmospheric pollution Green Building Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Cost of electricity and home heating fuels increased in 1970s Construction industry responded by developing ways to conserve energy Methods have been developed to Save water Consume fewer resources for building materials Make homes safer and more comfortable Development of Green Home Market Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Green Building System House works as systemnot merely assembly of pieces and parts Every material and sub- system must be planned and installed properly Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Green Building Team Owner and architect meet with contractors to discuss plans Teamwork is necessary to ensure everything is done properly Even small details, such as sealing holes in wire or pipe, must be considered Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Site Selection and Lot Planning Objective for green-built house is to minimize impact on site and environment Plan is made for site work and construction Orientation of house on lot is also considered Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Windows and Roof Overhangs Can be planned to avoid direct sunlight This provides shading to help keep houses in warm climates naturally cooler Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Architects plans are reviewed by those who will build home Meetings are held to discuss house plans and how work will be carried out Contractors may recommend green building materials and equipment Team planning helps control costs House Design and Planning Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Resource Efficiency Green construction uses resources efficiently Efficient use of natural resources can result in functional products Engineered lumber produces less waste than sawing conventional lumber Weyerhaeuser Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. When choosing materials for green building, consider Energy savings Product longevity Indoor air quality Production location Resource consumption during production Materials Considerations Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Recyclability Green products may be chosen for their recyclability Made from recycled material Can be recycled in future Products such as cellular vinyl molding can contain up to 90% recycled material Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Energy Efficiency Energy consumption has far-reaching environmental impacts Green home programs place great emphasis on energy efficiency Energy is consumed as building materials are transported to site Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Renewable Energy About 21% of energy consumed in United States is used in homes Heating Appliances Some green homes use renewable energy sources Solar heating Photovoltaic and wind- powered generators Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Energy Star Label Indicates that product has been tested and proven to be energy efficient Devices carrying label generally use 2030% less energy than standard models The U.S. Environmental Protection Agencys Energy Star Program Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Weather Resistance Most important function of building envelope is to keep out weather Green homes are built with extra care to keep water out Wherever envelope is penetrated, seam must be sealed Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Water Conservation Green homes use less water than ordinary homes Plumbing fixtures use less water without reducing performance Native drought-resistant plants and small lawn area reduce water used for irrigation Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Indoor Air Quality Indoor air can be as polluted as air outside Radon can seep into home through foundation Mold spores can pose health risks Exhaust from household appliances can lead to unhealthy air Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Volatile Organic Compounds VOCs cause air pollution and host of health issues Many products in homes can emit VOCs Green building materials have very low or no VOCs Green homes replace stale indoor air with fresh outdoor air Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Best Construction Practices Green building raises bar for construction practices to highest level of quality Involving all members of team in whole process of building home is best practice Simpson Strong-tie Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Green homes should be operated and maintained as designed Homeowners daily activities impact how much energy and water are used Building team should compile reference manual for every green home It includes operating instructions and lifestyle impact information about homes systems Operation, Maintenance, and Homeowner Education Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Differentiate green homes from ordinary homes Set standards for green building practices Followed by building team Verified by independent third party Variety of green building certification programs available in United States Green Certification Programs Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. National Green Building Standard One of leading green programs used nationwide Points are awarded for certain green practices Green verifier reviews plans for house and inspects it during construction Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website. Leadership in Energy & Environmental Design is green building program of US Green Building Council Provides independent verification of buildings aspiring to be certified as green Certifies both commercial and residential projects LEED