We’re currently working on a project that is following option one for this credit and calculating the waste diversion in weight. Doe to a misunderstanding, one of the contractors of the project has tracked one type of waste in volume. In order to integrate this waste to our credit calculations, we’re searching if a valid conversion can be made from volume to weight. Even though the LEED NC-v4 guide doesn’t mention conversion rates, we have found a “Volume-to-weight” conversion table for construction and demolition debris in the LEED v4 Multifamily Midrise credit “Construction waste management”.

So in this case our question would be: is a conversion from volume to weight allowed for this credit and if so, is the Multifamily Midrise table a valid source to use?