This credit focuses on diverting waste from landfills by finding multiple alternatives for end uses of the waste, namely recycling, reuse on site, donation for reuse on another site, or resale. All of these diversion methods count towards credit compliance—50% construction waste diverted for one point, 75% for two points.
Look for opportunities to prevent the generation of waste on construction sites because the less waste you generate, the less you have to recycle or reuse to earn the credit.
There are two different approaches to recycling construction and demolition (C&D) waste: separating materials at the source (onsite), or commingling them and sending them to an off-site waste sorting facility. Either approach can work well. Your choice will depend on whether there is room for sorting onsite, whether the contractor is willing to take that on, and if there are good sorting facilities nearby.
The ease or difficulty of this credit depends on project-specific and regional conditions.
The general contractor (GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. ) is responsible for developing the CWM plan early in the construction process, if not before (during preconstruction). The GC does this in collaboration with the project team and is then responsible for implementing it, verifying that it is being followed throughout the construction process, and documenting the results.
Waste generated off-site, even for modular construction and pre-fabrication of major assemblies is not accounted for in the MRc2 calculations. MRc2 looks only at the management of waste generated onsite.
LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. #10265 made on 01/01/2013 provides the best official guidance for this situation. The approach that is approved in that situation involves multiple buildings, all being certified to LEED-NC. The ruling allows the project to track together all demolition and construction waste diverted, and to then apply a weighted average based on gross square footageSum of the floor areas of the spaces within the building including basements, mezzanine and intermediate-floored tiers, and penthouses with headroom height of 7.5 ft or greater. It is measured from the exterior faces of exterior walls or from the centerline of walls separating buildings, but excluding covered walkways, open roofed-over areas, porches and similar spaces, pipe trenches, exterior terraces or steps, chimneys, roof overhangs, and similar features. to each LEED project. Each building must meet the required threshold for waste diversion in order to earn the credit and in addition, the Construction Waste Management (CWM) Plan must outline goals for diversion for each building, not just as an aggregate across all projects.
If your project is in a similar situation but with different specific circumstances, LEEDuser would recommend adopting that advice as closely as possible, while accounting for any differences in a way that meets the LEED credit intent. Some projects may want to get an official ruling—either a CIR or LEED Interpretation.
Yes, materials that would otherwise be waste, but that are diverted from the landfill to be salvaged or reused can contribute to MRc2.
No. Hazardous waste does not count and it is excluded from the numerator and denominator portions of the credit calculations. You may want to include a brief narrative on the hazardous waste you found and how your project abated the material.
There has been some debate about this, since on the one hand this waste does not qualify as typical C&D waste, but on the other hand it is waste generated onsite, which this credit is intended to address. LEEDuser's experts recommend including this waste because it falls under the broader definition of waste generated onsite, and because reduction, recycling and diversion programs can be extremely effective in reducing the quantity of this waste. Having workers pay attention to this waste makes them more aware of overall job-site recycling, and not mixing lunch waste with construction waste like scrap metal increases the recyclability of the construction waste.
USGBC has ruled (for example, see LEED Interpretation #10061) that diverting waste to incineration facilities does not contribute to MRc2, but that Wood Derived Fuel (WDF) does meet the intent of this credit. As that ruling states, "The WDF process differs from incineration processes that are not allowed in this credit because the recycling facility provides a value-added process; it is a service that exists to sort and distribute materials appropriate to the highest end uses possible. In addition, the revenue generated by the WDF commodity helps to make this business successful and thus facilitates recycling of wood to other end uses as well as recycling of other materials."
According to the LEED Reference Guide, land-clearing debris includes soil, vegetation, and rocks.
Use the solid waste conversion factorsEstimates are presented in customary U.S. units. Floorspace estimates may be converted to metric units by using the relationship: 1 square foot is approximately equal to 0.0929 square meters. Energy estimates may be converted to metric units by using the relationship: 1 Btu is approximately equal to 1,055 joules; one kilowatthour is exactly equal to 3,600,000 joules; and one gigajoule (109 joules) is approximately 278 kilowatthours (kWh). in the LEED Reference Guide to account for recycled materials in dumpsters billed by volume.
It is typically better to use project-specific diversion data when you can get it, and this data should typically be accepted in a LEED review. However, there are other options.
There are LEED Interpretations such as LEED Interpretation #10060 made on 5/9/2011 that allow use of a facility-wide recycling rate, if approved by local regulators. On similar lines, a 5/9/2011 addendum added this note to the LEED Reference Guide: “For commingled recycling the average annual recycling rate for a sorting facility is acceptable for recording diversion rates only when the facility's method of recording and calculating the recycling rate is regulated by a local or state government authority.”
Either identify a hauler with a strong recycling program, or research and find local recycling facilities to which you can send your hauler.
Research the waste management system:
Check local government websites for recycling programs. Also search for other ways to put materials back in circulation, such as exchange programs and brokers. For example, pallets and packaging can be sold or given away through these programs.
Construction materials vary with project location and building type. Some materials are easier to recycle than others. For example, copper wire and steel studs are readily recycled into new products, but vinyl tiles may not be. Research and specify what materials can be recycled, reused, or salvaged in the project’s municipality or region—and design with these materials so that waste scrap can be diverted from the landfill. For example, specify carpet from a manufacturer that has a take-back program, or ceiling tiles that are easily recyclable. Using precast concrete will avoid waste generation from in-situ concrete that will help in total waste generated.
Demolition projects can give away furniture, computers, and other equipment. Projects can also reuse items like doors, and crush demolished concrete and other paving materials to be reused as fill onsite. Demolition and renovation jobs can present many opportunities for salvaging items like wood timbers, architectural detailing, stonework, and millwork for reuse on another project, sale, or donation.
Research and use manufacturer “take-back” programs as much as possible. Manufacturers increasingly take back equipment and materials at no or low cost to the project. These programs are common with certain equipment and computers, ceiling tiles, and carpeting, for example.
Develop a list of construction materials from the budget estimate.
Determine if the waste will be measured by volume or by weight and keep it consistent. (Most projects pursue measurement by weight instead of volume.)
Target materials that are plentiful and either heavy or voluminous, depending on your documentation approach, and that are easy to recover and recycle to meet the 50% or 75% credit thresholds.
If discarding a lot of heavy stone, metal or masonry products, it will probably be more advantageous to track weight.
If discarding lots of packaging, insulating foam, and other light materials, you may prefer to track volume.
Selecting the right waste processor can minimize cost, but you have to strike a balance between cost and the feasibility of using that waste processing plant based on distance from the site and whether the hauler will agree to use that facility.
Recycling often generates revenue for the hauler who may then reduce the fee for the project. It also generates savings by reducing landfill tipping fees, which is beneficial to the contractor.
Contractors may claim that the CWM coordination and administrative oversight cost more money than recycling is worth, but many good contractors have figured out how to do CWM and can make it work for the same amount or less than typical trash hauling. This is somewhat dependent on the location of the project and available local resources.
If dealing with an existing building and a large amount of material is salvageable, consider deconstruction and materials salvage as an alternative to demolition. The contractor will have to oversee the process carefully. Many resources are available on deconstruction. (See Resources.)
Deconstruction will add extra cost to the project due to the additional labor required to take materials apart, remove nails from wood, and maintain material integrity. Ideally, the contractor will find a buyer for the materials to help offset these costs.
Thinking long term, consider what design decisions can increase the likelihood of deconstruction further down the road when specifying materials and systems to be used in the current project. Material selection and assembly type can impact how materials may be deconstructed and reused at the end of the building’s life-cycle.
Perform a site survey to decide whether deconstruction makes sense. This will depend on how the building was assembled and the value of the materials to be salvaged.
Deconstruction is a good practice for maintaining a building material’s integrity so it can be reused. It certainly diverts waste from landfill and contributes to credit compliance as waste diversion.
Typically, good materials to salvage via deconstruction include wood framing, steel columns and beams, hardwood flooring, multi-paned windows, architectural details, plumbing and electrical fixtures, hardware and cabinetry, and high-quality brick work.
Renovation and restoration projects are good candidates for deconstruction.
There are industry standards on good practices for deconstruction as well as directories of experienced contractors, such as the Deconstruction Institute (see Resources).
Deconstruction can take longer than demolition. Project teams should estimate whether the extra labor spent on deconstruction can be offset by the value of the salvaged materials. Other benefits to weigh include the environmental benefits of reduced waste and avoiding use of new resources, and publicity benefits for materials reuse.
The project team should discuss the appropriate recycling process, including whether sorting will occur on or off site. This decision may be made after the general contractor joins the team. Both options have pros and cons (see table).
Early in the project, the architect should be involved in the plan to schedule construction and deconstruction with the contractor.
Hire a general contractor early in the project to discuss the deconstruction process and phasing.
Integrate CWM plan and MRc2 requirements into the construction specifications.
For guidance on how to write LEED specifications and CWM requirements into construction documents, see MasterSpec (see Resources).
If separation is occurring off-site at a comingled or mixed-debris processing plant, make sure the processor or recycling facility can provide documentation for the amount of waste processed, by weight or by volume, as agreed, as well as a diversion rate from the facility. This could be either a project-specific diversion rate supplied by the facility, or a letter from the state regulating body with the facility's average rate of recycling.
Waste prevention is an important part of CWM.
Orienting the GC to the tracking tools early on and providing on-going support to the CWM effort is critical to success.
The GC and project team should hold an orientation meeting to review all LEED-specific issues related not only to recycling and reuse, or salvaging, but also to reducing waste onsite in general.
The GC develops the CWM plan.
A CWM plan is an action plan for how to deal with construction and demolition (C&D) waste. At a minimum, it needs to identify what the recycling goals are, what materials will be recycled, reused or salvaged, which materials will be landfilled, and the estimated amounts of each (either by volume or by weight, but consistently throughout the project), processors that will receive the construction and demolition waste, and onsite procedures for achieving the stated goals.
Developing the CWM plan is the responsibility of the contractor but, ideally, the project team should work together to come up with a thorough CWM plan that addresses not only recycling, but also reusing and salvaging as many materials as possible.
In developing a CWM plan, take into account regional constraints, and weigh the feasibility of recycling or salvaging materials against other environmental factors, such as the impact of hauling waste long distances if recyclers are far from the project site. In such an instance, if site conditions allow, one strategy would be to stockpile material to be hauled only once or twice during a project to cut down on transportation cost and associated environmental impact.
Source separating, or onsite sorting, can yield the highest recycling rate and the best price for materials. Try to encourage the contractor to locate separate containers onsite to sort the materials.
Providing a sample CWM plan and guidelines on how to communicate it to subcontractors and workers can help to minimize any hesitation on the part of the GC.
Hiring construction teams that already have LEED experience and are familiar with CWM is helpful for credit achievement. They may already have developed CWM plans, have existing relationships with haulers and recyclers, and know how to train construction field personnel in CWM practices and track diversion rates.
Review LEED requirements with contractors during the bidding process so that they understand their responsibilities.
Subcontractors should be contractually required to implement their part of the CWM plan. Accountability is key to successfully implementing a CWM plan.
Hire a special deconstruction contractor if required.
Provide a deconstruction-detailed drawing and specification with specific handling instructions for each material to be removed, such as whether it will be salvaged and sold, reused onsite, or marked for recycling.
Require measures for deconstruction in the CWM plan.
The GC is responsible for implementing the CWM plan and making sure the recycling and reuse goals are met. (The GC should make sure to review the action steps and tips associated with developing the CWM plan, above.)
Provide training for each contractor and subcontractor about the CWM plan and the importance of documenting it. Make sure everyone is on the same page regarding recycling goals. Make each training session specific to that trade.
As new subcontractors start work on site, have a LEED orientation session as part of safety trainings or other jobsite orientation meetings.
Consider designating a recycling coordinator (most likely someone in the GC’s office) to deal with all issues both onsite and off-site pertaining to CWM and making sure the plan is implemented properly and followed by all involved.
Weekly construction meetings should include an update, with a biweekly or monthly report collected by the LEED consultant, architect or owner. The CWM plan should outline this step, but it is important to make sure that all subcontractors and the GC are working together to comply during construction.
The contractor should communicate with all subcontractors about the recycling policy to make sure it is being followed. Recycling activities should be discussed regularly at job meetings.
A designated recycling coordinator can facilitate communication with all field personnel and address problems in the field promptly. This can reduce the risk of getting to the end of construction and falling short of diversion goals when it is too late to do anything about it.
The GC and recycling coordinator should track the deconstruction process and make sure requirements and specifications are being met.
The deconstruction contractor submits sales receipts, donation receipts, and recycling weight tickets to the GC or recycling coordinator, so the diversion rates can be included in the CWM tally.
Preserving materials for reuse reduces waste disposal fees.
Train the staff on how to streamline onsite waste sorting. Identify champions within each subcontractor’s team to lead the CWM effort for their teams.
Designate a separate area to place bins for recycling. If waste is commingled (for off-site separation by the recycling center), some additional space is still required to keep wet waste and other garbage apart from recyclables.
A good CWM plan will include measures for waste prevention so that less waste is created in the first place. Consider requesting subcontractors to ask their vendors to use minimal or take-back packaging. As an incentive, specify that all subcontractors are responsible for returning pallets or recycling their packaging.
Use signage to support the CWM plan—reminding subcontractors to sort waste appropriately. Post signs on the sorting bins, garbage cans, and throughout the site. Signs should include whatever languages are needed to communicate with workers on the jobsite.
The recycling coordinator tracks onsite waste recycling every month, or with every filled bin, to stay on track. The bins may fill at different times, depending on the material. Every time a bin is emptied and weighed, fill in the data on the tracking sheet.
In cities where tipping fees are high, a lot of waste haulers separate waste automatically, just to avoid the fees, so contractors and subcontractors may have to source-separate onsite anyway.
Consider fencing recycling areas, screening recycling and trash dumpsters from the public or locating them in an inconspicuous area. Neighborhood “use” of dumpsters to dispose of old mattresses and other furnishings is a problem that contractors deal with regularly, especially in cities where disposal of bulky items is expensive. On the other hand, in areas where there are limited resources for construction waste recycling, projects can stockpile wood and other potentially desirable construction waste and make it available to workers and the community to take home. This material can then count towards diversion.
If separation is occurring off-site, make sure recyclables are not contaminated with other garbage and wet waste. Provide separate containers for food waste and miscellaneous garbage and mark all containers clearly and prominently.
Keeping coffee cups and food waste out of recycling bins can be especially challenging. Use clear signage to prevent this and make it easy for food waste to be properly disposed of by providing trash cans clearly marked and in various locations on the site or at each building level.
If separation is occurring off-site at a mixed-debris processing plant, make sure the recycling facility can provide documentation for the amount of waste processed, by weight or by volume, as well as monthly recycling rate information, which is required for documentation purposes.
Keep an ongoing log of weight tickets and receipts. The GC needs to track construction waste throughout the construction process. It is crucial that contractors request and keep all receipts and weight tickets from recycling companies to prove that diversion goals were achieved, as well as letters from recycling companies certifying their monthly recycling rates.
Maintain a project log to input all the monthly reports in one place. This will track project waste recycling rates and provide an alert if the average is lower than the target of 50% or 75%. Address these shortfalls early in the process to ensure that final diversion rates can be met.
LEED project managers should provide contractors with tracking or log-book forms to simplify the tracking process. See the Resources section for the LEEDuser CWM tracking calculator.
Waste amounts must be tracked consistently, either by weight or volume. If materials are very heavy, it is best to use the weight approach. Most waste processors track by weight, anyway. But this will depend on what the bulk of the project’s waste is made of.
Do not include land-clearing debris or excavated soil or rock in your calculations. Even if diverted from landfill, it is not to be included in the credit calculations. Contractors often think that trees and stumps are still part of the diverted waste, but take them out of the LEED credit form and supporting documentation if the contractor includes them.
Compile construction waste recycling data from all the monthly reports, and complete your LEED documentation online for submission to the USGBC.
Monthly reports from recycling facilities, showing their average monthly recycling rates, are an appropriate form of documentation for this credit.
Build on construction waste management practices for future renovations and remodeling.
Excerpted from LEED 2009 for New Construction and Major Renovations
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.
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 comingledA process of recycling materials that allows consumers to dispose of various materials (such as paper, cardboard, plastic, and metal) in one container that is separate from waste. The recyclable materials are not sorted until they are collected and brought to a sorting facility.. 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:
You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.
This LEED credit (or a component of this credit) has been established as equivalent to a SITES v2 credit or component. For more information on using the equivalency as a substitution in your LEED or SITES project, see this article and guidance document.
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 coverAlternative daily cover is material (other than earthen material) that is placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day to control vectors, fires, odors, blowing litter, and scavenging. material, etc.) may be applied to the construction waste calculation. Designate a specific area(s) on the construction site for segregated or comingledA process of recycling materials that allows consumers to dispose of various materials (such as paper, cardboard, plastic, and metal) in one container that is separate from waste. The recyclable materials are not sorted until they are collected and brought to a sorting facility. 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.
Source for receiving salvaged or deconstructed materials.
Waste management solutions - New York only.
New York City's only non-profit retail outlet for salvaged and surplus building materials.
A step-by-step guide on deconstruction for contractors.
Template for writing specifications on construction waste management as part of the MasterSpec licensed spec system.
Federal Green Construction Guide for Specifiers sample spec language.
Sample CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. Plan.
Resources Guide to developing a CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. plan.
This is a resource database of contractors proficient with deconstruction and organizations, distributors, or contractors seeking material to salvage.
This website from the California Integrated Waste Management Board contains information on recycling and the use of recycled-content materials. The site includes many publications available for free download, such as sample construction and demolition debris recycling specifications.
This online database contains information on companies that haul, collect and process recyclable debris from construction projects sorted by zip code.
CMDepot is a place where you can buy & sell excess construction material, tools, & equipment. You simply login, submit a listing of your excess material, and wait for a buyer. If a buyer contacts you, you can work out payment details and a delivery method.
Comprehensive web page on construction waste management for large projects, with links to other resources.
WasteCapTRACE is an online documentation program for tracking construction and demolition debris recycling. It generates a custom construction waste management plan, provides a forum in which multiple team members can record data, and outputs reports and charts for your LEED submission. WasteCapTRACE is priced on a per-project basis, with fees linked to project square footage (like LEED application fees).
PlanetReuse is a nationwide reclaimed construction material broker and consultant company. They make it easier to use a wide variety of reclaimed materials in new projects as well as help find new projects for building materials being deconstructed, guiding owners and contractors through every step of the process. LEED documents are also provided for waste management documentation.
This guide is developed by wastematch.org, an organization that matches donors to recipients.
Model specification language that can be used by architects and engineers who want to reduce waste during construction.
Use clear signage such as in these example to keep construction and demolition waste separated for diversion purposes.
If you use commingled construction waste management, in which CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. is commingled and weighed off-site or calculated using a recycling facility's average diversion rate, you'll need special documentation to justify your rates for LEED. This sample was provided by Sustainable Solutions Corporation.
Use a tracking sheet and calculator like this one to monitor your credit compliance.
This document provides key tips and sample tracking sheets and checklists for your project's construction waste management (CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing.) plan.
Sample LEED Online forms for all rating systems and versions are available on the USGBC website.
Hi , We are working on Mega project is Saudi Arabia where we are using the concrete waste to build Safety road/excavation barriers which will be used on site during construction instead of purchasing new barriers. They will be moved out of site and utilized in another project after the project completion. Can they contribute toward MR CR2
Yes if the concrete waste will be used somewhere else on another project then it is a technique to divert it from landfill which is the intent of the credit. You will need to track and document the waste.
What is the definition of a landfill in the USA?
In Mexico, we have what is called “Socavon” which is a site that has been exploited, usually with mining activities. Once the life of the mine expires then an enormous void/hole is left on the ground, known as a “Socavon”. This void, by law, can only be filled by excavation debris and/or CLEAN (not contaminated) construction or demolition debris.
This includes: demolished concrete, masonry units, bricks or similar materials.
And excludes: hazardous waste, municipal solid waste, organic waste, or any other not in the category above.
At the end of the process when the site reaches natural ground level, a minimum 8 inches of fertile organic soil material is placed and the site shall be strictly used (by law) for agriculture purposes only.
My question: Would this be considered a landfill for the purposes of LEED 2009 (MRc2)? or can it count as construction waste diversion?
Anything similar in other countries?
Thanks in advance
Adrian - I thought that the LEED Reference Guide would have a definition for landfill but it is does not. (Neither is landfill in the v4 glossary - http://www.usgbc.org/glossary.) Since there's no referenced standard for this credit, I'm not sure what the best resource would be to refer to but here is the definition from the US EPA - https://www.epa.gov/landfills/basic-information-about-landfills#whatis.
What you are describing seems similar to other posts related to mine rehabilitation. Have you read the posts on this forum regarding mine rehabilitation? Open http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true in your browser and then search for mine. One in particular to look at is http://www.leeduser.com/comment/redirect/63778.
If this search doesn't help you, please repost a question here.
We are working on a project that generates a lot of scrap wood from formwork. The contractor is sending us receipts for construction waste management credit which include wood that will be used for domestic heating in fireplaces. Does this qualifies as Wood-Derived Fuel? And is this accepted by GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). as a waste diversion strategy?
Mario - Please access http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true and search for the word "fuel" from your browser. There are several previous posts (specifically 3/14/14 from Kathryn West - http://www.leeduser.com/comment/redirect/48555) that might be of use to you. If you still have a question, please repost to this thread.
Thank you Michelle for your reply.
Actually, i have already checked these posts but it is still not clear to me if using the wood waste in home fireplace can be considered as wood derived fuel, and if it is accepted bu USGBC as a waste diversion method.
I am currently on a project where one of our goals is to achieve Innovation Design: MRc2 Exemplary PerformanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. (95%). Right now we are tracking at 92% of recycled content.
I wanted to know if it was possible to count packaging of materials ie. cardboard and wood pallets as part of our recycling efforts in an attempt to achieve our 95% goal. My mindset was that I could argue that even though it is not a physical product of the building the packaging does play an important role of the project and an effort to reduce any and all waste going back to the landfill should be considered.
If anyone has further insight on how to achieve this your information/insight would be greatly appreciated. Thanks for your help!!
it was always my understanding that the building materials included packaging in what needed to be counted under the MRc2 C&D waste credit. On the project I'm working on I'm also including the GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. 's office waste in our calculations since we're only working on this one LEED project and i'm including any haz/universal waste we generate from the construction such as tool/ equipt. batteries, recycled solvents, oil, etc.
James - I agree with Debra regarding packaging being included (as well as office waste, which some consider a bit of a gray area. Expand this forum by clicking Single-Page view at the bottom and read some previous forums on this. As a guest to LEEDuser, you can't see the FAQ above regarding office waste.) However, I disagree with Debra on her comment about including hazardous/universal waste. The LEED Reference Guide states: "Hazardous waste should be excluded from calculations and should be disposed of according to relevant regulations."
Bottom line: If the waste is generated from activities within the LEED Site, then it can be counted toward this credit - the only exceptions in LEED 2009 are land-clearing debris and hazardous waste.
As a clarification: when I said:
"I'm including any haz/universal waste we generate from the construction such as tool/ equipt. batteries, recycled solvents, oil, etc."
I meant that as a GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. - our company is going to make sure we recycle &/or legally dispose of any hazardous waste that we or our subs generate. I'm not planning on putting weights for such into our C&D tracking calcs for LEED however.
My project is composed of 10 buildings on a college campus. I know for a fact the CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. credit is a campus credit. How do I document this? Do i go to each building on LEEDONLINE and upload? There is also something called "Master Site". Could someone please explain what that is? Is that where I upload all campus credits? And how do I tell if a specific credit is registered as a campus credit or not? Please note that the waste diverted was for the entire site (the entire campus), and not building by building. Could someone please explain how and where I could upload this CWM campus credit?
A campus project is typically registered as a master site with associated building projects. I am assuming your project is registered that way. If so, yes CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. is a campus credit. You would designate it that way on line in the master site credit for MR2 and in each corresponding building credit MR2. Then you'd upload the documentation that includes all the buildings into the Master Site credit one time.
This process is much more convoluted if your project was on the older platform and was converted. Not all credits can be pursued on the campus level. For guidance on all of these issues, you need to consult the multiple buildings guidance document. (http://www.usgbc.org/resources/leed-campus-guidance)
Michelle - Thanks for jumping in on this answer. Here's a few things I would add:
1. This is a link to some FAQs on campus that might help Ethan with some of the intricacies of LEED Online - http://www.usgbc.org/help-topic/campus-projects.
2. I've also heard that some people have experienced some issues with campus projects in LEED Online since the upgrade in January 2016.
3. Ethan - As a guest to LEEDuser, you can't see the FAQ above regarding LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. #10265. Check that out in the Addenda Database - http://www.usgbc.org/content/li-10265.
C&D Waste Recycling Calculations for 200 yr-old bldg renovation:
This 200 yr-old brick building had a tremendous amount of old brick that was falling apart and needed to be taken out and re-pointed with "new" salvaged brick and new mortar.
The old brick that was structurally unsound and had to come out, was falling apart, full of old sandy mortar and was in now way able to be taken out without being covered in dirty, old sandy mortar. This "waste" was taken to the brick/ concrete recycler who rejected it saying it was too dirty. Since we tried to have it recycled but it was turned down by them, can we not include this material in our C&D Waste Calcs - like excavated soil is not included? Does anyone know for sure about deducting or not including this in our LEED calcs for MRc2? We can support this with photos of the removed brick/mortar. Thank you! Debra Lombard
Debra - I am not personally aware of any exceptions to exclude materials from the MRc2 (other than hazardous materials and land-clearing debris). I think this credit is one that can be hard for existing building with a lot of demolition because typically the materials cannot be easily recycled or diverted from the landfill, which is the intent of this credit. And as you know, not all credits are applicable to and achievable by all projects types.
Have you looked at the Related Credit text in MRc1.1 that allows credit in MRc2 if you haven't utilized MRc1? (It's also listed in MRc2 under Related Credits.) This might ease your pain if you're not already pursuing MRc1.
Another thing to consider might be to look at the LEED v4 credit substitution for LEED 2009 projects - http://www.usgbc.org/articles/new-leed-v4-credit-substitutions-2009-proj....
If other LEEDusers have any insights, I hope they will chime in.
I would agree with Michelle.
You may be pressed for time now but there may be other opportunities, even someone in the area who would want the brick as fill.
Could someone please help define the meaning of 'source separated' in terms of the Material Stream credit calculator? The project I'm working on collects all of its recyclable waste in a single container due to site area constraints. The waste is then taken to a recycling facility where it is separated into its constituent components, weighed by material, and recycled accordingly. Are we allowed to claim credit for each of the materials within our commingled load since they are sorted before they are weighed, or is this still considered a single waste stream since it is commingled on the site?
Risto - As I see it, materials streams are part of the LEED v4 version of this credit. If your question does pertain to LEED v4, consider reposting at http://www.leeduser.com/credit/NC-v4/MRc5. But first, review that forum as there might already be a similar question under that credit. Also, as a guest and not a LEEDuser member, you can't see the Bird's Eye View information that explains material streams in more detail and might be additionally helpful. Read more about becoming a member here - http://www.leeduser.com/select.
I'm currently working on a project where we are building a new dormitory. When the new dorm is up and running the existing dorm down the road will be demolished. Do I need to include that is the construction waste management plan? I do believe the plan is to bulldoze it after the building has been abated.
No - you do not need to include it in your plan as it is outside of the LEED Project Boundary. That said, the green building best practice would be to deconstruct it and reuse or recycle materials from the building instead of bulldozing it.
Construction Waste Management- Regarding waste material reused on site, our project is currently reusing wood and concrete on site. The wood reused on site is reused at least 3 times or even more during the construction process (formwork, support, etc) after this process the reused wood exits the project site. The Concrete is reused (leftover after every concrete casting on site) elsewhere in the project where concrete is needed and the concrete stays on site there is no end waste leaving the site. My question is, can both these reused “on site” waste materials count towards construction waste diversion from landfill? (since we are diverting waste that will otherwise end up in a landfill by giving it a second use on site) Or does the end waste leaving the site (in the case of wood) affect this documentation?
Adrian - Reuse of materials on site is a laudable activity.
Re: Concrete - If I am understanding what you are describing I don't think that this is actually waste and hence would not count in the overall construction waste calculations.
Re: Wood - To clarify: When you say that "the reused wood exits the project site" - do you mean it leaves to be used elsewhere? Or does it get landfilled? If it does get landfilled then the wood would need to be included in the construction waste counts.
Shall it considered as reducing wastes? and shall be counted and documented?
Abdalla - For the concrete: no it would not be counted in MRc2's calculations and documentation. It was used as a building material and it not waste. If the wood is leaves the site to be used elsewhere: yes because it was diverted from the landfill. However, if the wood leaves the site and gets landfilled, then yes it would be counted in MRc2's calculations and documentation. It would be considered waste and not material diverted from the landfill.
Thanks for your reply Michelle- However i still have some inquiries
WOOD: It is clear to me now, regarding wood, what counts towards the MRc2 calculation is the final waste material leaving the site. When i say "reused wood exits the project site" i mean (after it is reused on site) the leftover small pieces which can no longer be used, these have been both landfilled or donated/recycled externally throughout the project. Will this wood "waste material" count towards landfill calculation or diverted from landfill calculation respectively?
CONCRETE: If i understand correctly, this leftover concrete after every on site casting is not considered a waste but a building material. Will this material then be able to contribute to MRc3 as a reused material? Or to any other MR credti? Or is it no more than a laudable activity or a Best Management Practice?
another thought: (Hypothetically speaking, if this left over concrete was not reused on site and exited the project site to be landfilled, would it be considered as a waste in the MRc2 calculation?)
the project is LEED CSv3
in Addition, if the project has pile cap demolitions, how it be considered in MRc2 calculations?
Adrian - To answer your questions:
Wood: Landfilled material is counted in the landfilled calculation for MRc2. Reused material that you can document its final disposition as not being landfilled is counted as diverted.
Concrete: While you are avoiding waste generation, under the LEED 2009 version of MRc2, this is just a best practice as source reduction. However, when you start using LEED v4, you can be rewarded for source reduction - http://www.usgbc.org/node/2601031?return=/credits/new-construction/v4.
Hypothetical situation: Yes - landfilled material from on-site activities are included as waste in MRc2.
Abdalla - Pile caps (https://en.wikipedia.org/wiki/Pile_cap)are manmade and hence should be considered in the calculations and documentation for MRc2 - even though they would have been dug up.
Michelle, it is clear to me now.
Michelle, please advise how to consider pile cap demolitions in Mr2 since the concrete weight is about of 1600 ton, that means that credit cannot be achieved.
OR, as per my information, this material cannot be used for further application, OR is there a method for reuse? please advise.
Abdalla - Projects with large amounts of demolition can have a hard time achieving MRc2 if there are not recycled material markets. If this is the case you have, then MRc2 might not be achievable.
In the United States, concrete from demolition is often crushed and used for aggregate for new concrete or as a base or sub-base material. Consider looking at http://www.cdrecycling.org/concrete-recycling or http://www.concretenetwork.com/concrete/demolition/recycling_concrete.htm for additional information.
What if you have two buildings each persuing LEED certification both build by the same contractor but two owners. How do you seperate the waste amount from both building? Is a floor area distribution possible? To make it even more tricky, one building is a new construction and the other is a core and shelle project. Anyone had a similar chalenge?
Piotr - As a LEEDuser guest, you can't see the Bird's Eye View above, which provides additional details and tips.
One of those tips discusses multiple buildings and construction waste. Please review this LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. - http://www.usgbc.org/content/li-10265. Also, click the Single-page view at the bottom of this page and search this forum for answers to similar questions.
If you still have questions, please post again.
Project Location: India.
The project construction site has rock bed. These rock are excavated, broken and re-used in construction on-site. The larger pieces are used for Gabion Wall in construction and smaller pieces are used for Plum Concrete. Can we use this re-used rocks part of the CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing. submission calculations in consideration the efforts being put to reuse instead of sending to landfill. We have photographs of how this construction is happening on-site however there is no option for uploading photographs. Thank you.
Hi - The credit requirements state: "Excavated soil and land-clearing debris do not contribute to this credit." While using on-site materials is laudable, I think that since the credit requirements exclude land-clearing debris (which is further defined as soil, vegetation, and rocks) you cannot count this for MRc2; however, reuse of material can be counted under MRc3 and regionally extracted material can be counted under MRc5. Please note that materials that are reprocessed might better be captured under MRc4 instead of MRc3. Please see MRc3 (http://www.leeduser.com/credit/NC-2009/MRc3)(specifically “Reused” vs. “recycled” FAQ) and MRc4 (http://www.leeduser.com/credit/NC-2009/MRc4) for additional information.
Thank you Michelle.
I am conducting this survey in affiliation with University of Cincinnati in support of my hypothesis for my Master's thesis. It would just take 10-15 minutes of your time. By completing this survey you would help me in giving my research the required depth in understanding the achievability of the credit points in the Material and Resource category of LEED v2009 and v2013. I will send in the end results of this survey to you, which could potentially make your decision process easier on any future LEED registered projects you intend to work on.
The following is the link to my survey: https://www.surveymonkey.com/r/XR3ZVZN
Thank you in advance for taking the time!
we have a project where the waste management contractor is proposing to use clean construction rubble (non-hazardous rubble, where all recyclable components, eg steel, and hazardous materials have been removed) to fill an old open pit mine, which is undergoing rehabilitation. substantial quantities of clean construction rubble/fill are being procured for this rehabilitation project.
we are wondering whether this can be considered "diversion from landfill" given it fulfills the purpose of mine rehabilitation? is this something that has been done before? We cannot find any reference to open pit mine rehabilitation in the context of this credit in any of the LEED documentation.
Any guidance will be greatly appreciated.
Jutta - Sorry for my delayed response. I don't have any experience with your situation (waste used for mine reclamation) so I had to do some research.
You should review LI ID #2191 - http://www.usgbc.org/leed-interpretations?keys=2191 - and see how it compares to what your waste management contractor is proposing. Based on what I read there, mine backfilling is not an equivalent means of accomplishing construction waste management; however, the ruling is based on potentially recyclable materials being in the mine fill material.
If other LEEDusers have experience with this, please chime in.
I have a similar but slightly different variation on this theme.
Our C&D Waste hauler typically uses the following process to "recycle" sheetrock.
In a letter that I received from them:
"xyz Landfill. In accordance with our Type III Construction and Demolition Debris Permit and Wood Waste Management Plan, we beneficially use the following C&D debris materials...
Homogeneous loads of Concrete debris, roofing materials, and sheet-rock are acceptable for on-site use as road materials within the Permit Area. This reduces the need for virgin rock or stone to be mined and transported to our facility."
Has anyone had this same type of "recycling" approved by LEED either through the CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide process or just by submitting such documented use from the recycler." Like they say, the waste is a direct substitution for virgin material they'd need to acquire for that same purpose. There are no known local sheetrock recyclers in the project area other than this facility above. Therefore, there are really no other local options to having the sheetrock recycled in other means and besides to grind the sheetrock up to use a soil amendment would only then require more energy to grind it whereas, the sheetrock used as road base requires less energy to use in that manner.
Debra - My apologies for not getting back to you sooner as I was traveling for work.
I also was hoping that if any other LEEDusers had direct experience with your situation they would chime in.
The closest my experience comes to this is when waste concrete and masonry have been used by a landfill for its roads. (I've never seen sheet rock or roofing included.)I've not had a problem with this being accepted as it is diverted from the landfill and is replacing using virgin materials.
I think you can utilize the information contained in the LEED Reference Guide and cited in various LEED Interpretations including LI ID #2256: "Any construction debris processed into a recycled content commodity which has an open market value (e.g. alternative daily coverAlternative daily cover is material (other than earthen material) that is placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day to control vectors, fires, odors, blowing litter, and scavenging. material) may be applied to the construction waste calculation."
I agree. This is called "crushed base" here and it is always accepted. It's essentially making a stable layer under the road.
I saw a comment from several years ago that appears not to have been answered; a response would be useful to me now! Can anyone address this question? Here it is:
A large project with a building(actually buildings and parking lots) slated for demolition - the demo package contract is completely separate from the construction package, and will take place half/full year in advance of construction. The right thing to do is to include the demo in CWMConstruction Waste Management (CWM) diverts construction debris from landfills through the processes of recycling, salvaging and reusing., but is it technically required?
Margaret - When I first saw your question, I went to the Reference Guide (no guidance on this issue there) and then to the MPRs. At first glance I didn’t see anything applicable.
So, I went to find the question you indicated was unanswered, which I think is http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true#comment-2641. I see that Tristan included Valerie Walsh’s skillfully articulated answer from the LEED-CI MRc2 forum - http://www.leeduser.com/credit/CI-2009/MRc2?all-comments=true#comment-2554. If you look at the thread in LEED-CI, you’ll see that is followed up by a well-written response by Susan Walter - http://www.leeduser.com/credit/CI-2009/MRc2?all-comments=true#comment-17257. I think that Susan is referring to the intent of MPR # 3 - Must Use a Reasonable Site Boundary, which is: “All site conditions and impacts related to a building must be considered and addressed in the certification process to ensure a complete and thorough examination of the environmental impacts of a building.” (See Supplemental Guidance to MPRs - http://www.usgbc.org/resources/leed-2009-mpr-supplemental-guidance-revis....)
I agree with Susan that it is technically required. My approach has always been that if the demolition work is occurring within the LEED project boundary and it is being done in order to complete the LEED project, then it should be included. (And it is the right thing to do too!)
You could read a similar response in this thread: http://www.leeduser.com/credit/CI-2009/MRc2?all-comments=true#comment-55217.
Thanks, Michelle. That sure looks like the question I saw and I don't know how I missed the response.
Good answers - this will help!
I have a building located in a campus. Only the office tower is undergoing LEED certification but all 3 area being built concurrently. Basement is shared but clearly demarcated to each building, buildings have separate owners. I recently discovered that all the waste for the site is being calculated, not just the waste from the office tower. I suspect this credit will be approved, since the methodology of collection is OK, but I just want to see if anyone has had experience submitting waste additional to the project building.
Melissa - While it is laudable that you are hopefully diverting a lot of the waste from the landfill for all three projects, the total waste does not reflect your LEED project's waste alone.
See my response (http://www.leeduser.com/credit/NC-2009/MRc2?all-comments=true#comment-57828) under the heading Construction Waste Management-Multiple Buildings below for a similar post on this subject.
I should have updated this: our LEED reviewers agreed with you. They required us to separate out the waste for this project only and not to use a pro-rata method. Thanks!
I'm working on behalf of a GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. on a complicated historic renovation and new construction project that's being done in several phases with separate contracts between Owner and GC. The project was registered with LEED NC 2009 during the 1st phase (but after the 1st phase started) so the C&D Waste was not properly documented at the beginning of the 1st phase and the LEED goals were never communicated to the GC until the end of the 1st phase, so C&D Waste Recycling rate will be VERY low. Now the design team has identified the C&D Waste Recycling Credit, 50% as one of the credits the GC needs to pursue. So it'll be complicated to calculate and also unclear as to whether or not waste from the 1st phase of work will need to be included in the C&D Waste Recycling Calcs for the main project contract which is Phase II and will start well after the project registration under v 2009. Any thoughts?
Also, the documentation of what was removed to be reused and what was repaired in situ is also also not properly documented and will be very messy to try & piece together at this point. So this is another issue (The original bldg. dates back to 1823 and much of what was supposed to be reused couldn't due to age/service life of materials.) But I feel that the project should get BOTH of the Bldg Reuse credits just based on the fact that the owner is trying to preserve the bldg. in tact as much as possible and is making repairs to preserve the remaining life of the bldg. Any ideas on this as well is greatly appreciated.
Debra - I can't answer part two of your question related to building reuse. I encourage you to post your question on the MRc1.1 or MRc1.2 forum(s) - http://www.leeduser.com/credit/NC-2009/MRc1.1 or http://www.leeduser.com/credit/NC-2009/MRc1.2. Be sure to review the Related Credits information for MRc1.1 and MRc1.2 in regards to MRc2 and vice versa.
It is unfortunate that the GCA General Contractor (GC) manages, coordinates, and oversees building construction; may perform some construction tasks; and is responsible for hiring and managing subcontractors. was not included in the critical conversation regarding LEED and construction waste and that the waste diversion for the first phase is low and the records are messy. It is also unfortunate that the design team imposed this credit late on the construction team.
Based on what you have shared, my first thought is that you would have to include the waste from the first phase because the project was registered during that phase and the overall project's scope includes the first phase to make a complete project. In my opinion for a renovation project, you can't really pick and choose what to include/exclude - especially if it works to your advantage to exclude it, for instance. I would encourage a conversation with your design team to explain the potentially unrealistic nature of its late request for construction waste for the first phase. Maybe they will work with the construction team to substitute another credit that is more attainable?
(Also, I'm not sure if you mean the project was registered after first phase "had started construction" - but it is fairly typical that projects register after they have started design.)
Has anyone had any luck recycling glass taken from a commercial building? They are double pane commercial units removed from the curtainwall system. Our client is replacing a significant amount of glass on a 20 year old building to increase the overall performance of the building but we are having a hard time finding a place to recycle the glass units and this will be a large amount of weight in relation to the total amount of demo debris.
Donald - I haven't had success in this arena.
This 2011 blog implies that it can be used to make fiberglass and glassphalt - http://recyclenation.com/2011/09/window-glass-recycling-difficult-not-im.... It might be worth checking with manufacturers in your region. The blog also suggests some ideas for salvaging the windows.
I also found this resource in a quick Google search for window glass recycling - http://www.dlubak.com/ - "one of the largest recyclers of Window Plate and Container glass" with "six plants located in Pennsylvania, Ohio, Kentucky, Texas, Oklahoma, and Arizona, in addition to numerous depots throughout the US, Canada and Mexico."
If nothing else, removing the frame to recycle it separately from the glass might be an option.
However I hope other LEEDusers who have experience will chime in.
I'm concerned about our project earning points for MRc2. The country our project is in does not recycle very much, and most of the projects waste seems to be diverted to the landfill and not from the landfill. I'm not sure if the municipality recycles wood, plastic, etc... Our project has recycled scrap metal, asphalt, and gypsum.. We separate and sort waste on-site the best we can. Could the project loose points if there is a high percentage of waste going to the landfill ?
Ali - Not all credits are available to all projects. Based on what you've shared of your situation, your project does not appear able to earn MRc2 - as you are not able to meet the intent (diverting debris from disposal in landfills and incineration facilities.) So yes - if you were counting on earning points under MRc2, you would lose them.
But really, you can't lose points that you weren't able to earn in the first place. It sounds like you all should not have been counting on earning points under MRc2 based on the availability of recycling in your project's location.
Our project involves demolition. There are some materials - wood beams, bricks - that will likely be either donated to a reuse center or sold. Has a standard method of documenting this type of diversion been established?
James - I am not aware of a standard method. I just select Diverted on the form and provide information on the location where the material ends up. If I feel there is a need to clarify a unique situation, I use the Special Circumstances area of the form.
James, are you asking about how to track the weight or volume, or what kind of documentation (like receipts) to track?
We have Project intending to be registered under LEED 2009 BD+C for major renovations. This is an existing building which will undergo major renovation work for the interiors, HVAC and a large extent of the external façade (structural systems).
Following is the query related to the Materials category:
Should the documentation for the credits i.e. Construction Waste Management, Recycled Content, Regional Materials, Rapidly RenewableTerm describing a natural material that is grown and harvested on a relatively short-rotation cycle (defined by the LEED rating system to be ten years or less). and Certified WoodWood from a source that has been determined, through a certification process, to meet stated ecological and other criteria. There are numerous forest certification programs in general use based on several standards, but only the Forest Stewardship Council's standards, which include requirements that the wood be tracked through its chain-of-custody, can be used to qualify wood for a point in the LEED Rating System., only focus on the renovations or should it also include the portions of the existing building.
JP - You inquiry is a little unclear. What do mean by "only focus on the renovations or should it also include the portions of the existing building"? Do you mean there are portions of the existing building that are not being renovated and do you have to deal with existing materials for the MR credits?
Here's some general info: The MR credits apply to all activities within your LEED project boundary. The MRc3-7 credits address purchases made for the LEED project.
Thanks for the reply. What I would like to clarify is:
1. When we do credit calculation for MR Credit 2: Construction Waste Management, should we include waste details at the time of construction of existing building, which happened around 10 years back and details are not available as of now. Only waste management details of renovation that is going to happen will be available. So the scope of MR CR 2 calculation is for the entire building or only for renovation works is the specific query that I have.
2. Similarly for MR CR 4 and MR CR 5 will the calculation include material cost details of existing building materials (steel, concrete, cement etc.) details of which are difficult to obtain at this time, if these are to be included it will be difficult to achieve credit points for MR CR 4 & 5 as these materials constitute a major chunk of the total materials cost.
JP - A LEED project covers the extent of the project that is currently being undertaken. In the case of an existing building being rehabilitated under LEED BD+C: NC, you are only dealing with waste generated and materials used for that renovation project - not the original construction of the building. You do NOT have to go back in history to get information on the existing building.
This credit focuses on how much waste material leaving the site is diverted from LANFILL. My question is as follows:
If I am manufacturing wood offsite, and bringing the wood directly to the construction site, do I have to take into account the waste that was being produced offsite? There is definitely waste being generated onsite & We are certainty taking into account the waste being produced onsite. But, What about the waste offsite? LEED doesn't state nor specify recycling or diverting offsite waste from landfill. Can someone please confirm?
Ethen - This credit only deals with on-site generated waste. So to answer your first question - no - you do not have to take into account the waste that is being produced offsite.
It has come to my attention that in my local market, most if not all waste management companies use visual inspections to determine recycling rates for commingled loads. I am aware that this is not an acceptable method for meeting LEED requirements. Additionally, to the best of my knowledge, I do not believe that local or state governments regulate recycling facilities' method of recording and calculating their recycling rates. Fortunately, on a number of my projects, the waste hauler is delivering the commingled waste to a local facility that is RCI certified. Since the monthly average recycling rates for the facility are made available online on the RCI's website, my intention is to ignore the diverted weight percentage calculations that the waste hauler is providing (based on visual inspections), and to use the certified facility's recycling rates to calculate a diverted waste percentage in compliance with the requirements of MRpc87. Would this be an acceptable calculation for MRc2?
Marcia - Happy New Year! After we spoke at Greenbuild about this issue, I think you were headed to the GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). Certification Work Zone to express your concerns with these visual inspections being passed off as true accounting of commingled materials. Did you get any help or guidance there?
I recently investigated MRpc87 for a client - yet I cannot say if USGBC would allow the Recycling Certification Institute's (RCI) certification rate in lieu of local or state government authority regulation (per LI ID #10060 - http://www.usgbc.org/leed-interpretations?keys=10060 and added to the Reference Guide per Correction ID #100000902 - http://www.usgbc.org/leed-interpretations?keys=100000902 ).
As I think all you will get is advice here, my recommendation is that you write a LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. inquiry for this situation. I think you could make a good case for it and having an LI would allow other projects to benefit from RCI's efforts.
Happy New Year to you as well, Michelle! Unfortunately, I was not aware of the fact that we had an RCI certified facility in the area before I spoke to the GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC). Rep at the Certification Work Zone, so I did not get to ask about that. I am open to submitting a LEED interpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. inquiry, as you suggested. However I cannot figure out how to go about doing that, and I have already spent the greater part of my morning trying to figure this out, with no luck. Do you have any experience with this?
As I understand it, inquiries are submitted via LEED Online - http://www.usgbc.org/help/how-do-i-submit-project-credit-interpretation-.... While I haven't used the system in the new LEED Online, here's what I see. After logging in, select a project that you will attribute the LI to. Once in that project, click Interpretations button in the grey menu bar. Click the Submit A New Inquiry button and follow the steps.
The sticky part is that there only seems to be an option for submitting Project CIR inquiries, and the fee schedule - http://www.usgbc.org/cert-guide/fees - only shows the price for Project CIRs, which are not precedent setting. It used to show that LIs cost $220 (Project CIR fee) plus $180 for Silver, Gold, and Platinum members…
However, there are numerous FAQs on both LIs and Project CIRs - http://www.usgbc.org/help/what-leed-interpretation - including the difference between the two - http://www.usgbc.org/help/what-difference-between-leed-interpretation-an....
Sounds like a call to Customer Service is needed. Yet the rep I spoke to could not provide additional information and said I should contact the certification team with my question via http://www.usgbc.org/contactus and selecting the Certification Question button.
Please let us know what you find.
I found this document while trying to get a more definitive answer for you - http://www.usgbc.org/sites/default/files/How%20to%20Submit%20a%20Credit%... (accessed from http://www.usgbc.org/resources/how-submit-credit-interpretation-request-...). It outlines how to submit LEED Interpretations.
Marcia - While I was re-reading the LEED v4 Reference Guide for Construction and Demolition Waste Management (MRc5), I came across these sentences under Step-by-Step Guidance in regards to commingled and thought of you: "The waste-sorting facility provides a waste diversion percentage specific to the project’s waste based on measurement of each component waste material. Visual inspection is not an acceptable method of evaluation for documenting this percentage."
While this is not specifically in the v3/2009 Reference Guide, possibly there has been an issue with folks thinking visual inspections are acceptable and USGBC attempted to squelch this practice (or perception) in LEED v4.
thanks so much for your constant follow-up and assistance with this. Visual inspections seem to be standard operating procedure for most waste haulers in this market and for some reason the majority of them seem to be unaware of the LEED requirements which state that this is unacceptable methodology. I have brought this to the attention of a few, and the response usually is that it is too costly to weigh each waste stream individually, and since they have not had any challenges by LEED reviewers on submitted reports based on visual inspections, there is not much incentive for them to make changes to comply. I would not be surprised to learn that other consultants would face similar issues, if they themselves understood that this procedure is what is being used. Most of the other consultants I have dealt with in my business are unaware and usually just assume that the waste reports they are receiving are compliant. I do intend to submit a LEED interpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org. to get some feedback about using the RCI data, because it would benefit a number of my current projects, and it would allow me to know how to direct clients on future projects regarding this issue. I will provide some feedback after I have done this.
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