Assembly Calculator for Materials with Recycled Content

Caroline – Are you using the LEEDuser “Assembly Calculator for Materials with Recycled Content” (Recycled Content Calculator.xls) from the “Documentation Toolkit” tab above? The formulas in that spreadsheet calculate the “Assembly Recycled Content Value,” just like “Equation 3” in the LEED-2006 BD+C Reference Guide. Although this value can be useful when evaluating various assemblies, the spreadsheet does not output the post- & pre-consumer percentages that you need to enter into the LEEDonline BD+C MR Calculator spreadsheet. Calculate the recycled content of your assembly as follows: Wood.. 5% × ( 100% post +.. 0% pre ) = 5% post +.. 0% pre Alum.. 75% × (. . 0% post + 60% pre ) = 0% post + 45% pre Other. 20% × (. . 0% post +.. 0% pre ) = 0% post +.. 0% pre ============================================= Total 100% . . . . . . . . . . × . . . . . . . . .( 5% post + 45% pre ) Therefore, your assembly has 5% post- & 45% pre-consumer recycled content. Enter these percentages into the BD+C MR Calculator. You can use this same approach for any assembly…or even make your own spreadsheet to replicate this calculation.