We have a supplier's documentation spreadsheet for structural steel listing each separate material (HSSs, beams, channels) with weight, cost, post and pre-consumer percentages.

We are working on an international project and the contractor is telling us that the standards in their country lack cut-sheets and MSDS sheets.

Does GBCI now require sole use of USGBC's calculator for MRc3-7? Or is it allowing use of 3rd-party calculators such as from LEEDuser or GCs?

We are working on a project where the entire site needs 50'-0" deep compaction grouting at 6'-0" o.c to stabilize it.Then this public project will be pile supported.

LEED Interpretation #10246, out on 10/1/12, makes a pretty big change to documentation requirements for MRc4 (effective for pro

When purchasing FSC Mixed MDF & particle boards and the percentage is NOT on invoice, MRc7 says we can claim 100% as FSC material. Can I also claim the material under the recycle portion?

Hi folks, We've been receiveing Material Safety Data Sheets informing VOC levels, recicled content percentage and distances for MRc5 with expiration date and this seems to be common practice by ma

RefGuide says in page 373 "In the case of supplementary cementitious materials (SCMs) used in concrete recycled from other operations, the recycled content value can be based on the mass of the cem

Has anyone acutally used LEED User "LEED Materials Calculator" for uploading to leedonline for MR credits 4-7 in lieu of transferring the data to the BDC Material Rescourse Calculator?

Hello, I'm working on a project where a very large amount of the soil had to be removed due to contamination (we are pursuing SSc3) and clean soil had to be brought in from off-site.