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Chapter 27

Chapter 27. Environmentally Friendly Framing Methods. Introduction. Structural drawings (e.g., framing plans, sections and details, and foundation plan) Require thorough understanding of materials and process of construction

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Chapter 27

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  1. Chapter 27 Environmentally Friendly Framing Methods

  2. Introduction • Structural drawings (e.g., framing plans, sections and details, and foundation plan) • Require thorough understanding of materials and process of construction • Wood, steel, masonry, and concrete are the most common materials used • Each material has its own green properties, and methods of achieving Leadership in Energy and Environmental Design (LEED) credits

  3. Wood Framing Methods • Each method has many green properties that lead to LEED credits • Common credits gained by use of wood framing methods include: • Recycled content • Building resources • Rapidly renewable materials • Certified wood products

  4. Wood Framing Methods (cont’d.) • Balloon or eastern framing • Rarely used • Exterior studs run from the top of the foundation to the top of the highest level

  5. Wood Framing Methods (cont’d.) • Platform or western framing • Most common • A platform is created by each floor

  6. Wood Framing Methods (cont’d.) • Post-and-beam framing • Places framing members at greater distances apart than platform methods

  7. Wood Framing Methods (cont’d.) • Timber construction • Not widely used in last 100 years • Some are returning to timber framing methods • Warmth and coziness

  8. Energy-Efficient Framing Methods • Energy-efficient platform framing • Advanced framing techniques (AFTs) replace nonstructural wood with insulation • Increases energy efficiency

  9. Energy-Efficient Framing (cont’d.) • Engineered lumber and materials • Structural engineered members • Small pieces of wood turned into framing members • Usually made from wood scraps and young, small-diameter, fast-growing tree species • Engineered lumber for framing • Laminated veneer lumber (LVL) • Laminated strand lumber (LSL) • Parallel strand lumber (PSL)

  10. Energy-Efficient Framing (cont’d.) • Structurally insulated panels (SIPs) • Structural strength • High insulation rates • Built-in vapor barriers • Sound-deadening qualities • Ease of installation

  11. Energy-Efficient Framing (cont’d.) • Steel framing • Consistently straight and square • Resists stress from weather • Contains about 50% recycled metal and is 100% recyclable

  12. Energy-Efficient Framing (cont’d.) • Concrete masonry units • Durable and economical building • Excellent structural and insulation values • Concrete blocks • Classifications • Patterns, colors, and shapes • Concrete form masonry units

  13. Energy-Efficient Framing (cont’d.) • Solid masonry construction • Can last for centuries • Reduces temperature swings • Variety of position and patterns • Masonry walls must be reinforced • Masonry veneer

  14. Energy-Efficient Framing (cont’d.) • Insulated concrete form construction • Provide an energy-efficient wall-framing system for an entire structure

  15. Energy-Efficient Framing (cont’d.) • Modular framing methods • Highly engineered method of construction • Efficient and cost-effective • Begin as components designed, engineered, and assembled in a factory using assembly-line techniques

  16. Green Construction Goals • Key questions: • Can products be selected that are made from environmentally friendly materials? • Can products be selected because of what they do not contain? • Will the products reduce the environmental impact during construction?

  17. Green Construction Goals (cont’d.) • Key questions (cont’d.): • Will the products reduce the environmental impact of operating the building? • Will the products to contribute to a safe, healthy indoor environment?

  18. Green Construction Goals (cont’d.) • Major considerations: • Environmentally friendly materials • Salvaged products • Products with recycled content • Certified wood products • Quick-growth and waste by-products • Minimally processed products • Removing materials • Reducing construction impact

  19. Green Construction Goals (cont’d.) • Major considerations (cont’d.): • Reducing impact after construction • Reducing energy demands and maintenance • Using renewable energy • Conserving water • Preventing pollution and eliminating pesticides • Contributing to the environment • Improving interiors with nonpolluting products • Blocking, removing, and warning of contaminants

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