Our project includes a geothermal system. When calculating the total material cost I wonder in which division of the CSI masterformat should the cost of this system be accounted for.

Can the 25% default recycled content value for steel be applied to door hardware and non-structural steel framing, or can it only be applied to structural steel?

I am looking for the "New Materials Spreadsheet" that was announced today, and is supposed to be available for download under the "Credit Resource Upload Utility section of LEED Online." But so fa

We have several steel items that have been purchased for our contractors project. Most of the items show a total recycled content, then a post- and pre-consumer recycled content.

Dear Sir/Madam, I have few clarification of whether the old constructed portion material should be considered for all the materials credits. Project Details: The building has been developed by t

I have sort of a minor ethical crisis: I'm reviewing the website of a not-to-be-named tile manufacturer who is claiming 40% MRc4 recycled content in their product, due to the reintroduction of scra

I have similar concerns as Maria described earlier, and I would really appreciate some advice on how to calculate material costs in a case where a sub-contractor is performing concrete works on-sit

A project we're working on is replacing some of the city sidewalk, which is outside our property line and LEED boundary. Should we include the concrete in our material calculations?