In this credit, How can I prove that my  purchased material has compile with Embodied Carbon/LCA Action Plan or other impact reductions .

When modeling district cooling and heating systems using Option 1, Path 1: ASHRAE 90.1-2010 Appendix G, the LEED Reference Guide instructs the following: "If tariffs or rates are not available from

Hi,

For the prerequisite requirement to add R-19 insulation to floor / slab under energystar, is it required on every floor?
Knowing that all floors are airconditioned,

My project is registered as v4 and is using the v4.1 credit substitution for Low-Emitting Materials.

We are having a tough time getting the costs from our subs. The subs says that the cost is bundled with other material and they can't break it up.

Hi LEED experts, in LEED v4.1, NC projects with more than 50% unregulated energy cost can apply CS point thresholds to count points. I would like to ask if LEED v4 also applies 

Instead of demolition or deconstruction, this project will move an entire building across the street to another site on the campus.

LEED v4.1 references ASTM standard E2813 Standard Practice for Building Enclosure Commissioning regarding BECx requirements.

The product that our sub uses is "Diatrex Transparent Knife Grade" & Axson Cream Hardener"  for stone countertop seams and it does not meet the limits.

In the case of drying materials and to help run some tests for the commissioning processes to make sure building equipment is functioning properly, can you turn on RTUs prior to buil