sustainable exam 3

Deconstruction

taking a building apart carefully to reuse/recycle materials

LOFO

Last On First Off - taking apart a building in the reverse order that it was built to preserve materials as best as possible and for safety reasons

What are the major challenges of deconstruction?

• No strong resale market for materials

• Limited skilled labor

• Hard-to-disassemble designs

• Too many chemicals (glue, coatings, etc.)

Define DfD

Design for Deconstruction/Disassembly - designing buildings so they can be easily taken apart later

What are the 10 key principles of DfD?

1. Document materials and methods for deconstruction.

2. Select materials wisely (using the precautionary principle): choose a material that you can potentially reuse in the future

3. Design Accessible connections: ensure joints and fasteners are easy to locate and reach

4. Minimize/Eliminate chemical connections: no glue!

5. Use bolt, screw, and nail connections: in that order

6. Separate MEP systems: to allow independent removal

7. Worker-focused design: make things easy and safe to take apart

8. Simple Designs: straightforward designs provide easy disassembly

9. Interchangeability: use standardized, reusable pieces

10. Safe deconstruction: safety first over feasibility and accessibility

What are the current problems in design from a deconstruction/disassembly perspective?

• Too many composites/engineered materials

• High labor costs to take apart

• Permanent connections are hard to undo

• Loss of craft skills

• Heavy use of coatings/encapsulation

• Owners don’t think long-term

• People think DfD lowers value

Sustainable Development

to ensure it meets the needs of the present without compromising the ability of future generations to meet their needs

Green Building

a building that meets the specified building performance requirements while minimizing disturbance to local, regional, and global ecosystems throughout the building’s lifecycle (before, during, and after construction)

Green Construction

Planning and managing a project per the construction documents with minimal damage to the environment

cradle to crade

Material/Product that is recycled into a new product at the end of its defined life (ex. spare wood decking can be turned into mulch)

cradle to grave

Material/Product’s entire life up to the point of disposal (ex. tires and batteries > we know where they go when we are done using them)

Ethics

a science of morals, moral principles, or code

Applied Ethics

a person’s approach for picking values for individual conduct and for application in relationships

What is the sustainability strategy behind designing/building using regional resources?

Using regional resources cuts transportation impact, improves oversight of how products are made, and supports the regional economy.

what are 3 ideas to make a company have a more sustainable operation?

1) replace printed documents with digital tools

2) installing motion sensor lighting and touch-less faucets

3) using reusable dinnerware instead of disposable