In collaboration with the National Ready Mixed Concrete Association and San Francisco-based architectural/engineering giant Arup North America Ltd., the Ready Mixed Concrete Research & Education Foundation has funded development of NRMCA Ingredient Reporting Guidance, detailing how concrete producers can contribute toward the LEED v4 Materials and Resources: Building Product Disclosure and Optimization – Material Ingredients credit. To position customers for up to two LEED v4 M&R credit points, producers must obtain comprehensive information on the material ingredients and chemical constituents of all components used in their mixtures.
|Copies of NRMCA Material Ingredient Reporting Guidance — Methodology and Guide to LEED v4 Material Ingredient Reporting can be downloaded free of charge at www.rmc-foundation.org. Printed copies are also available.|
“Increased transparency and the disclosure of construction material ingredients is becoming the norm rather than the exception, and it is an important step toward sustainability. The RMC Foundation is pleased to support the concrete industry by providing this new resource detailing the different paths for producers to obtain and report the necessary information in the most effective and efficient way,” says Chairman Matt Wood of Ash Grove Cement Co.
“This new resource is one of the ways we are honoring a strong commitment to helping both the concrete industry and construction industry as a whole to implement more green building practices,” adds RMC Foundation Executive Director Julie Garbini.
|Guidance charts pathways within the three LEED v4 Material Ingredient credit options.|
BUILDING MATERIAL HUMAN HAZARD PILOT CREDIT
A new LEED v4 green building rating system pilot credit encourages project teams and manufacturers or suppliers to assess human health related exposure scenarios for products or materials during their installation/placement and use phases.
“LEED v4 has begun a shift in how we think about health and building materials,” says U.S Green Building Council Chief Product Officer Scot Horst. “We have a focus on transparency and optimization so specifiers can know what they ar`e using and reward innovation. But understanding how a material impacts human health requires a full understanding of hazard and exposure. The pilot credit is a first step toward evaluating exposure by encouraging product inventories in order to prioritize decision making.”
LEED Pilot Credit—Building Material Human Hazard & Exposure Assessment can reward manufacturers or suppliers who perform assessments that serve as a basis for developing products and materials designed to minimize life cycle human health impacts. Such assessments, USGBC officials note, can in turn be an important consideration for project principals weighing alternative building products or materials.
By requiring exposure to be considered during product development or material formulation, the pilot credit begins to make linkages between ingredient inventory and hazard assessment required by the existing Materials Ingredients credit and performance testing under LEED Low Emitting Materials. The Hazard and Exposure pilot continues USGBC’s work to advance rating system practitioners’ knowledge and understanding of products and materials. Credit developers’ ultimate aim is that project teams have a full and complete picture of building materials and products, enabling transparent, informed decisions around important attributes of offices, homes, schools and other structures.
USGBC crafted the Hazard and Exposure pilot credit in conjunction with the American Chemistry Council per a partnership established in 2014 to expand supplier/manufacturer and specifier collaboration; leverage scientific expertise; and, make LEED a more effective tool to deliver positive economic, environmental and social outcomes.
Notes Council Vice President Debra Phillips, “Through Responsible Care, ACC members support scientific and systematic approaches to managing and continuously improving the safety of their products. Members also undertake third-party verification of their systems and approaches. This new credit brings such a scientific, systematic and third-party validated approach to the important issue of health.”
To fulfill the credit requirements, LEED projects must submit material or product documentation from suppliers and manufacturers—including calculations and assumptions—to GBCI, the third-party verification body for LEED. Information will be combined with data from other ongoing pilots and credits and synthesized by USGBC and GBCI to inform technical development of Hazard and Exposure and other materials-related LEED credits.
All USGBC members are eligible to submit pilot credits for consideration; pilot credits are evaluated based on applicability to the goals of LEED, relative impact compared to other LEED credits or pilot credits, technical rigor and achievability.