1. Environmentally Friendly Framing Methods
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

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

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

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

12. 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)

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

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

15. 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

16. 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

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

19. 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

20. 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?

21. 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?

22. 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

23. 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