Minimize materials use and waste flows over the life-cycle of site design projects by increasing the efficient use of materials at construction, facilitating flexibility and adaptation, and increasing the reuse and recycling of materials resulting from renovation and demolition.
Percentages are based on cost or replacement value. In the case of mixed material assemblies, determine the portion of the total weight that is reusable. Multiply the portion of total weight by the total cost to determine the proportion of product assembly that meets the requirements of this credit (Materials Worksheet automatically does this). Plants, rocks, and soils are excluded from this credit.
- Use material assemblies, products, or product components that are designed for disassembly and facilitate reuse for at least:
- 30 percent of total materials cost, excluding plants, rocks, and soils 3 points
- 60 percent of total materials cost, excluding plants, rocks, and soils 4 points
- Ensure the section of the site maintenance plan (see O+M P8.1: Plan for sustainable site maintenance) is complete, explains how to replace any deteriorating or damaged components, and lists any proper maintenance techniques.
- Establish a project goal for future adaptation and renovation of the project and reusable products, and identify material and product suppliers who can help achieve this goal.
- Design construction details to facilitate disassembly without damage to the material:
- Use reversible connections (e.g., bolts, screws) and avoid the use of mortar, adhesives, welded connections, or nailed connections that cannot be easily removed.
- Use friction-fit and other mechanical connections that rely on compression or lateral or vertical forces (e.g., mortar-less retaining walls, interlocking sand-laid pavers).
- Avoid the use of coatings on products for which current industry practice prohibits recycling of the material.
- Eliminate or reduce the use of composites for which current industry practice prohibits recycling of the material.
- Use durable and high-quality materials that exceed minimum performance standards.
- Document as-built drawings if outcome on site is different from design drawings.