Adhesive credits

Patricia—What you describe is not unusual. The emissions reporting done for interior products under IEQc4.1 through IEQc4.4 is completely independent of the material cost reports done for Materials and Resources credits. Credits MRc3 through MRc6 all tally up material costs for all products specified in CSI MasterFormat Divisions 03 through 10 (plus a few Sections from 31 & 32). Likewise, MRc7 tracks wood costs for these same Divisions. The MR credits measure achievement based on the costs and the characteristics (for example, recycled content) of each product in the CSI Divisions listed above divided by the total cost of ALL materials in those same Divisions. (See the LEEDuser MR Credit forums.) The cost information requested in your example above probably duplicates that which you submit to the Prime Contractor for billing purposes. If a project’s LEED documentation team has access to detailed billing information, such duplicate reporting often becomes unnecessary. Finally, be aware that documentation requirements for LEEDv4 differ from previous versions, so you can expect further changes in LEED data requirements.

Patricia—The fact that adhesives contribute to IEQ credits does not exclude them from consideration under MR. Since flooring adhesives are usually specified in CSI MasterFormat Division 09, they also figure into the metrics for MR credits. That said, adhesives rarely contain reused, recycled, regional, renewable, or wood materials that might contribute to credits MRc3 through MRc7. In these cases, only the costs are relevant to these credits. Some LEED documentation teams calculate their projects’ “total material cost” by summing the costs of each individual product purchased. They may need your figures to complete that total. See the LEEDuser MR pages for more guidance.