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2 GREEN PRACTICES IN NEW HOME DESIGN TEMPLATE 1
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In This Chapter Whole building design Passive design
Design issues and challenges 2-1
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Whole Building Design Objectives: Accessible Aesthetics Cost-Effective
Functional/Operational Historic Preservation Productive Secure/Safe Sustainable 2-2
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Design Factors Size Community impact and relationships Climate Sun
Lighting Water Material selection Connection to nature 2-3
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Size Structure consumes in direct proportion to its size
While larger home may be energy efficient, it still consumes more energy, and thus has higher energy costs, than a smaller home 2-4
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Community Impact and Relationships
Green home or building must not be seen as an entity apart from the community and its sustainability goals in areas 2-5
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Climate Climate analysis: Historical weather data
Sun paths, patterns, and angles Rainfall amounts Wind direction and speeds Mean daily temperatures Dew points Humidity levels Severe weather patterns 2-6
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Sun 2-7
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Lighting Maximizing daylighting (the use of natural light) through strategies such as east/west orientation of the home or building on the site and open floor plans 2-8
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Water Minimize impact on hydrological cycles, conserve water, reduce runoff, and manage and collect storm water for use in landscape irrigation and bathroom facilities 2-9
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Material Selection Reused, recycled-content, and locally sourced materials are important to meeting green design goals. Designing with material reduction in mind is another strategy to reduce impact of home or building on environment. See Case Study 2.1. 2-10
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Connection to Nature Home or building should have a minimal impact on nature Should not disrupt wildlife corridors and local ecology Home owner or tenant should feel connected to nature 2-11
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Passive Design Refers to use of no mechanical systems or appliances to achieve green goals Daylighting Solar heat gain management Ventilation 2-12
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Focus on Daylighting Toplighting (skylights, clerestories)
Sidelighting (windows, curtain walls) Shading devices (overhangs, awnings, trees) Low-transmittance windows See Figure 2.5 for daylighting design considerations 2-13
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Exercise Focuses on design challenges that arise from issues discussed. Read each challenge, solution, and take-away and answer the questions that follow. 2-14
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