I have NC Retail 2007 project. The same type of waste is grouped together. For example, the metal includes iron, aluminium and etc, But sorting is done off site. Whether this will be a commingled waste or individual materials.
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December 27, 2016 - 12:32 pm
Sundararaj - I consider commingled to be the combined collection of a variety of different material types (wood, plastic, metal, etc.). (There is no definition in the LEED 2009 Reference Guide but the LEED v4 Reference Guide states that commingled waste is "building waste streams that are combined on the project site and hauled away for sorting into recyclable streams. Also known as single-stream recycling.")
Various metals are often collected together on site independent from other materials or streams and then further separated off-site either at the recycling transfer center or the metal recycler. I would count each metal as an individual material; however, either way you classify it (individual or commingled) you'll need to have good backup that justifies the various weights or volumes of the individual metals.