Dear all,
I use the assembly calculator for a product made with wood and aluminium. I use weight repartition :
Wood = 5%= 100% postconsumer
Aluminium = 75 % = 60% preconsumer
Other = 20%= 0% recycled content.
After calcultation I get a global Cost Contributing to MRc4 Recycled Content but no a global rate(%) recycled for the entire product. I don't know how complete the general Table for Sustainable material.
Can anybody please help ? I hope my question is clear.
Thanks !
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Jon Clifford
LEED-AP BD+CGREENSQUARE
LEEDuser Expert
327 thumbs up
August 29, 2015 - 2:58 pm
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.
Caroline PIN
In charge of environmental certification on a jobsiteEIFFAGE CONSTRUCTION
9 thumbs up
September 2, 2015 - 1:33 pm
It was exactly my problem ! Thank's a lot. I complete the spreadsheet with formulas.