Does LEED v4.1 allow the use of fly ash in concrete mixes?

Several questions that lead to how /if one can apply the Materials Reuse strategy to a lighting fixture that uses reclaimed wood for its housing/support frame etc.

A co-worker noticed today that the requirement language in the online LEED Credit Library for this credit has lowered the threshold of "products sourced...meeting criteria for at least 15% by cost

Does anyone know if PEFC crtification ia a "USGBC-approved equivalent" to FSC certification?

My contractor is looking at this CLT manufacturer in Austria:

In the LEED V3 reference guide, it is noted that the recycled content of SCMs in concrete mixes can be based on the mass of the cementitious materials only, rather than on the e

I have a project where we have Pre-Cast Concrete Panels valued at close to $5Million.  The components of the panels (Cement, Sand, Aggregate, Fly-Ash) are all sourced within 100 miles of the p

In the v3 reference guide, changes were made to clarify recycled content could define "the extraction point for recycled materials is the location of the raw material prior to the manufacturing of

If someone could please confirm whether the following guidance from the LEED v4 Reference Guide is still applicable to LEED v4.1 projects: "Default recycled content for steel products where no

Hi all,

I am having some difficulty in finding products that can be classified as bio-based according to the BPDO-Sourcing of Raw materials credit definition.

I have yet to find a comprehensive list of manufacturers offering take back programs and supporting documentation of their recycling rates, as required by GBCI.