Backup documentation for MRc4 & MRc5

Felipe - The forms for MRc4 and MRc5 list that you have to provide backup for 20% of the materials by cost for each credit. The BDC Materials and Resources Calculator helps you tally the 20% by cost uploads you need. You can check off the items there for backup (Cutsheet Provided2 column) and it will give you a % of total at the bottom.

Felipe - Please make sure you are using the BDC Materials and Resources Calculator, which is an Excel spreadsheet that accompanies the v04 and newer versions of the MRc4 and MRc5 forms. You may need your project team administrator to upgrade your forms if you have v03 or even the dreaded beta. Using this spreadsheet is a much easier way to track and document the MR credits than on the earlier versions of the form itself. You can get the spreadsheet from the Credit Library under Resources - http://www.usgbc.org/node/1731024?view=resources. I think that your supplier is helping you greatly. They are setting you up to have the recycled part of the concrete mix on a separate line in the BDC MR calculator with the remaining items (less the cost of the recycled items) on another line so that you can easily document the concrete components and avoid double counting. As you indicate, the recycled component is typically also regional. I label the concrete as "concrete w/o fly ash included" and input its regional attributes and subtract the cost of the fly ash from the overall mix design. Then I put the fly ash on its own line and input its recycled and regional attributes. This way I can help the reviewer see that I am not double counting the recycled fly ash twice for regional. Also, be sure you are using the Supplementary Cementitious Materials information in the Reference Guide to get full credit for the recycled components.