Do I need to enter every single material used into the spreadsheet, or can I stop once I've reached the 10% or 20% threshold? Please tell me it's the latter!

I would like to know how you can consider a concrete which has returned to the production plant without being used in the construction. Can be a residue pre or post consumer? Thanks.

Hello, I need a clarification on how to calculate the percentage of recycled content for a specific material on my project. For example; My fiber glass insulation has 9% post consumer recycled cont

Has anybody ever had an issue with using an EPP certified product to gain recycled content for a project?

It is obvious that the LEED reviewers use a set of predetermined comments for certain material claims made.

CSI Section 10 is included in this credit. What would be considered toilet/bath acessories under CSI 10 28 00?

We are currently working on a multiphase development in which the foundation of one building is being completed while another is being demolished.

When working on large projects with substantial mock-ups, should one include these materials in the project documentation?

Our project in Guam used base material extracted on site and gradated for reuse as aggregate sub-base below slabs and pavement on site.