Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "LEED Interpretation" "2105" "2008-05-13" "Commercial Interiors" "MRc1: Building Reuse" "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." "1969" "None" "LEED Interpretation" "2548" "2009-06-08" "New Construction, Schools - New Construction, Commercial Interiors, Existing Buildings" "MRc1.1: Building Reuse-Maintain Existing Walls, Floors and Roof" "Please confirm the application of LEED-NC Version 2.2 to a project on a university campus. The project includes a new addition as well as a major renovation to a portion of an existing building. The major renovation is encircled by a demising wall and is considered by the code definition of a building to be a separate building. Portions of the existing building will not be renovated and will not be included in the LEED project boundary or rating. All of the building is owned and used by the university. The proposed LEED project boundary includes the new addition and the areas of major renovation following the demising wall and excludes the rest of the building. Please confirm this approach." "The inquiry is seeking clarification on defining a LEED project boundary for an existing building with new addition. Per the MRc1 CIR Ruling on 8/27/2007, ""A project may determine the LEED project boundary in the existing building as best fits the project, provided this boundary includes all relevant construction work. In addition, the LEED project boundary must remain consistent across all LEED prerequisites and credits. For example, the project team may not include the entire existing building for some credits but only the renovated portions for other credits."" The project team\'s approach is correct. Also, if the areas of the existing building are excluded from the LEED project boundary, please be sure to consistently exclude them from any area calculations when submitting for MRc1. Applicable Internationally." "1864, 1799, 30012" "None" "X" "LEED Interpretation" "2588" "2009-06-08" "Commercial Interiors" "MRc1: Building Reuse" "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." "None" "None"