Credit achievement rate
Frank advice from LEED experts
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Maintain at least 40% or 60% by area of the existing non-shell, nonstructural components (e.g., walls, flooring and ceiling systems). The minimum percentage interior component reuse for each point threshold is as follows:See all forum discussions about this credit »
What does it cost?
Cost estimates for this credit
On each BD+C v4 credit, LEEDuser offers the wisdom of a team of architects, engineers, cost estimators, and LEED experts with hundreds of LEED projects between then. They analyzed the sustainable design strategies associated with each LEED credit, but also to assign actual costs to those strategies.
Our tab contains overall cost guidance, notes on what “soft costs” to expect, and a strategy-by-strategy breakdown of what to consider and what it might cost, in percentage premiums, actual costs, or both.
This information is also available in a full PDF download in The Cost of LEED v4 report.Learn more about The Cost of LEED v4 »
Frequently asked questionsSee all forum discussions about this credit »
Our project is a Commercial Interiors project where our client is to occupy 3 floors of a new construct building. The landlord as part of his construction program has fitted out the tenancy floors with raised floor and ceiling tiles, however this was done to the landlord\'s specification without the input from our client (ie. outside of our client\'s CI scope of works). As part of the CI project, we have decided to retain and integrate the raised floor and ceiling tiles, therefore avoiding wastage etc. We have therefore followed the credit intent even though the ceiling and floor is new. Will reuse of the ceiling and flooring in this instance count towards this credit?
The intent of MRc1, Building Reuse, is to reuse existing building elements in a previously built-out space. As such, in the case described above in which the landlord has provided a raised floor and ceiling tiles in a newly constructed building, it is simply good design practice to integrate these elements as it will save in the cost of demolition, as well as the time involved with the removal of these materials. Therefore your approach is not acceptable to achieve the credit.
How do you account for previously exposed structures that are finished as part of the project?
Components contributing to MRc1.2 include finished ceilings, walls, doors, flooring, and built-in case goods. Components should be divided into 3 categories for calculation: Prior Condition, Completed Design, and Retained Components Area. Prior Condition includes the total finished area that existed before the project began, Completed Design in the total finished area in the completed design (including all new and retained elements), and Retained Components Area is the area of components listed above that were in the space under both Prior Condition and Completed Design. Previously exposed elements that were finished as part of the project should not be counted in the Retained Components Area since the original element was altered/added to during construction. For example, an unfinished ceiling covered with a lay-in ceiling after construction would not be able to contribute to credit. Applicable internationally.
What defines \'finished floor\', \'finished ceiling\'. Example - the project we are working on was a former warehouse space converted to offices. The existing concrete slab remains intact, but we have selected a Shaw-Eco carpet to be installed over the slab. Is the slab considered a retained area or not because we are putting a new finish over it? Example - we maintained existing interior block walls but furred them out and put a new finish on due to their condition. Is that calculated as a retained area since it was not demolished? Example - we maintained the open exposed ceiling but painted it white for daylighting and lighting benefits. Is this still considered retained area? Please provide explicit guidance on how to deal with these calculations.
The project team is asking for clarification on how areas of specific items are to be dealt with in Finished Surface Area calculations. 1. An existing floor slab is considered part of the structure and should not be included in Finished Surface Areas calculations. The area of new carpet installed over the slab is to be included under Completed Design Area. 2. Since the existing wall was refinished, the finished square footage area should be included in the Completed Design Area column only. 3. Whether the existing exposed ceiling receives paint or not, the area of the retained exposed ceiling should be entered consistently under all three categories.
Step by step to LEED certification
LEEDuser’s checklists walk you through the key action steps you need to earn a credit, including how to avoid common pitfalls and save money.
The motherlode of cheat sheets
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
Get the inside scoop
Our editors have written a detailed analysis of nearly every LEED credit, and LEEDuser premium members get full access. We’ll tell you whether the credit is easy to accomplish or better left alone, and we provide insider tips on how to document it successfully.
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Maintain at least 40% or 60% by area of the existing non-shell, nonstructural components (e.g., walls, flooring and ceiling systems). The minimum percentage interior component reuse for each point threshold is as follows:
Got the gist of MRc1.2 but not sure how to actually achieve it? LEEDuser gives step-by-step help. Premium members get:
- Checklists covering all the key action steps you'll need to earn the credit.
- Hot tips to give you shortcuts and avoid pitfalls.
- Cost tips to assess what a credit will actually cost, and how to make it affordable.
- Ideas for going beyond LEED with best practices.
- All checklists organized by project phase.
- On-the-fly suggestions of useful items from the Documentation Toolkit and Credit Language.
In the end, LEED is all about documentation. LEEDuser’s Documentation Toolkit, for premium members only, saves you time and helps you avoid mistakes with:
- Calculators to help assess credit compliance.
- Tracking spreadsheets for materials purchases.
- Spreadsheets and forms to give to subs and other team members.
- Guidance documents on arcane LEED issues.
- Sample templates to help guide your narratives and LEED Online submissions.
- Examples of actual submissions from certified LEED projects.