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LEED Documentation of C & D Waste Diversion

VIDEO: Nick Bristow of Clayco discuss obtaining LEED credits and C & D Waste Diversion

The majority of commercial LEED projects pursue these credits. The information below is specific to LEED for New Construction & Major Renovation (LEED NC) version 2009. For more information about the LEED Green Building Rating System, please visit www.usgbc.org.

For a quick comparison between the LEED 2009 C&D credits and the LEED v4 C&D credits, see this one-pager. Please note that LEED v4 is still pending approval. 

MR Credit 2: Construction Waste Management

1 – 2 Points

Intent

To divert construction and demolition debris from disposal in landfills and incineration facilities. Redirect recyclable recovered resources back to the manufacturing process and reusable materials to appropriate sites.

Requirements

Recycle and/or salvage nonhazardous construction and demolition debris. Develop and implement a construction waste management plan that, at a minimum, identifies the materials to be diverted from disposal and whether the materials will be sorted on-site or comingled. Excavated soil and land-clearing debris do not contribute to this credit. Calculations can be done by weight or volume, but must be consistent throughout. The minimum percentage debris to be recycled or salvaged for each point threshold is as follows:

Recycled or Salvaged        Points

50%                                           1

75%                                           2

Potential Technologies & Strategies

Establish goals for diversion from disposal in landfills and incineration facilities and adopt a construction waste management plan to achieve these goals. Consider recycling cardboard, metal, brick, mineral fiber panel, concrete,plastic, clean wood, glass, gypsum wallboard, carpet and insulation.

Construction debris processed into a recycled content commodity that has an open market value (e.g., wood derived fuel [WDF], alternative daily cover material,etc.) may be applied to the construction waste calculation. Designate a specific area(s) on the construction site for segregated or comingled collection of recyclable materials, and track recycling efforts throughout the construction process. Identify construction haulers and recyclers to handle the designated materials. Note that diversion may include donation of materials to charitable organizations and salvage of materials on-site.

MR Credit 3: Materials Reuse

1–2 Points

Intent

To reuse building materials and products to reduce demand for virgin materials and reduce waste, thereby lessening impacts associated with the extraction and processing of virgin resources.

Requirements

Use salvaged, refurbished or reused materials, the sum of which constitutes at least 5% or 10%, based on cost, of the total value of materials on the project. The minimum percentage materials reused for each point threshold is as follows:

Reused Materials                 Points

5%                                               1

10%                                             2

Mechanical, electrical and plumbing components and specialty items such as elevators and equipment cannot be included in this calculation. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

Potential Technologies & Strategies

Identify opportunities to incorporate salvaged materials into the building design, and research potential material suppliers. Consider salvaged materials such as beams and posts, flooring, paneling, doors and frames, cabinetry and furniture, brick, and decorative items.

SAMPLE LEED FOR HOMES PROJECT WASTE DIVERSION BREAKDOWN

FOR LEED FOR HOMES CREDIT MR 3.2

REDUCED WASTE POINT SCORING UNIT

Conditioned Space 4680.00 SF

Non-Recycled Waste 2000.00 LBS

Ratio 0.43 LBS/SF

LEED 3.00 POINTS

INCREASED DIVERSION POINT SCORING UNIT

Waste Recycled 7535.00 LBS

Total Waste Generated 9535.00 LBS

Diversion Rate 79.02%

LEED 2.00 POINTS

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