Entries by Ian Johnson

What is an EPD?

EPD stands for Environmental Product Declaration and quantifies the environmental impact of a product over its given lifecycle in the material stream. Much of the information on the EPD is based on a life-cycle assessment (LCA). An LCA assesses environmental impacts over the life of the material, building, or product, from raw material extraction, manufacture, […]

When is LEEDv4 required and what are the major changes?

LEEDv4 is the USGBC’s newest version of the LEED Rating System. As with each of the previous incarnations of the program, LEEDv4 brings many new changes to the program but still maintains many of the core credit strategies of the previous versions. Originally released November 2013, at the annual Greenbuild Conference, the USGBC chose to […]

What is LEED?

For those just learning about green building, you’ve come to the right place. We’ve been working on green buildings for years and one of the biggest changes in construction in the last 20 years is the creation of the USGBC and the LEED Rating System. LEED is a rating system that was developed to streamline […]