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How is construction waste accounted for when utilizing off-site construction, like modular construction or pre-fabrication of assemblies?

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Can materials that have been unused and returned to the manufacturer as part of a “take-back” program contribute to the credit?

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The waste management facility we are using is providing us with monthly documentation specific to our waste, showing 80% diversion. They also have a published, facility-wide rate of roughly 20%, and they have no published rate for construction waste. Will

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NC-2009 MRc2:Construction Waste Management

Washout Waste

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Abena Darden
Vice President
Thornton Tomasetti
LEEDuser Premium Member
188 thumbs up

I've seen previous discussions as to equipment clean-up water waste not being applicable to this credit, but in our project, water and aggregate is generated by the installation of materials. My question is this: with a sprayed-on cementitious fireproofing, waste aggregate and water is hauled off by a washout waste contractor and is taken to a ready-mix recycling facility. There are haul tags to substantiate this. Can we include this material in MR 2 calcs? I would say yes, and there's no downside. Do others agree?

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472 thumbs up

Tue, 01/08/2013 - 15:59

Marian - My gut feeling is that this will not fly; however, if you are not counting on the washout water and aggregate to help you get over a percentage threshold for MRc2, I don’t see the downside in including it either. Consider checking out LI ID#5764 (https://www.usgbc.org/leedinterpretations/LISearch.aspx?liaccessid=5764) for a NC-v2.1 situation regarding bentonite. Consider reporting back to LEEDuser if you are successful.

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