Circular built environment definitions

There are currently 5 definitions in this directory beginning with the letter D.

Removal by disassembly of a building in the reverse order in which it was constructed, where components are used specifically for reuse, repurposing, recycling, and waste management.

It is a strategy used by industries and directly connected to resource-light economies. The idea to reduce materials in buildings also includes reducing material use per unit of service (Fernández,2006). It is a more inclusive approach considering material intensity in the entire product lifecycle.

Remove and legally dispose of off-site.

Design for deconstruction (also named DFD)
Similar to Design For Disassembly , Design for deconstruction analysis design of building products foreseeing disassembling after building use, which emphasizes the need for dry connections building detailing. Both disassembly and deconstruction promote proactive strategies in the design phase to enable extraction of products from buildings with higher quality conditions than when mixed with other materials and products to facilitate further reuse.

Design for deconstruction (Design for Disassembly (DFD))
DfD is the design of buildings to facilitate future change and the eventual dismantlement (in part or whole) for recovery of systems, components and materials. This design process includes developing the assemblies, components, materials, construction techniques, and information and management systems to accomplish this goal. Ten Key Principles for DfD:
1. Document materials and methods for deconstruction
2. Select materials using the precautionary principle*.
3. Design connections that are accessible
4. Minimize or eliminate chemical connections.
5. Use bolted, screwed and nailed connections.
6. Separate mechanical, electrical and plumbing (MEP) systems
7. Design to the worker and labor of separation
8. Simplicity of structure and form.
9. Interchangeability.
10. Safe deconstruction.

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