The green building certification market continues to expand. Berkeley Analytical can help paint & coatings manufacturers prepare for the new version of the U.S. Green Building Council's (USGBC) LEED green building rating system. LEED v4 has been approved by USGBC membership ballot. Version 4 will be officially launched at Greenbuild 2013 and already is being specified by new building projects. There are two sets of credits in LEED v4 that paint and coatings manufacturers can use to promote the environmental attributes of their products. The EQ credit for low-emitting materials is of primary importance. BkA offers paint testing services for VOC emissions and VOC content to support this credit. Our full description of the interior paints & coatings requirements of LEED v4 EQ Credit: Low-Emitting Materials can be downloaded here. A new Materials and Resources (MR) credit requires disclosure of chemical ingredients and avoidance of chemicals of concern as ingredients. BkA has started to work with manufacturers to help deliver this Building Product Disclosure and Optimization – Material Ingredients information to the architectural community in a meaningful manner while protecting proprietary product information. Be prepared for LEED v4 and contact us to learn more about these paint analysis services!
The Low-Emitting Materials (LEM) credit has been substantially revised in LEED v4. Under LEED 2009, EQ 4.2 interior paints and coatings only had to comply with VOC content restrictions that are meant to reduce the formation of outdoor photochemical smog. If a building project under LEED v4 wants to earn points using the LEM credit, they will seek interior finishes of all types that are tested for VOC emission by CDPH Standard Method V1.1 (CA Section 01350). The building interior is divided into six categories paints & coatings, adhesives & sealants, floors, ceilings + walls, composite woods, and furniture (if included in the rating system). The building project can earn between 1 and 3 LEED credits for showing compliance for three or more of these product categories. Additionally, all layers of a system must be compliant. Thus, both primers and topcoats will require environmental chamber testing. BkA provides testing of VOC emissions for all types of building products including paints and coatings. We can help manufacturers define families of products that are related based on their formulations. In this way, it's possible to leverage VOC emission testing across multiple products as allowed under Section 8 of CDPH Standard Method V1.1. VOC emission testing can be used for establishing both certified and self-declared market claims. See our discussion on Putting Your Test Results to Work for information about making valid self-declared environmental claims based on your paint testing results.
As with LEED 2009, paints and coatings also must meet VOC content restrictions in order to qualify for the LEED v4 LEM credit. The new guidelines for VOC content are the California Air Resources Board Suggested Control Measure (SCM) of 2007 or the South Coast Air Quality Management District (SCAQMD) Rule 1113 of 2011. Berkeley Analytical now offers content VOC testing of water-based paints and coatings using ASTM D6886, "Standard Test Method for Speciation of the Volatile Organic Compounds (VOCs) in Low VOC Content Waterborne Air-Dry Coatings by Gas Chromatography." Traditionally, U.S. EPA Method 24 has been used for the measurement of VOC content. This paint testing method is a gravimetric method that relies on Karl Fischer titration to determine the water content component of a product. Because of the uncertainties in the analysis, VOC contents much below 50 grams per liter (50 g/L) cannot be measured reliably. ASTM D6886 uses gas chromatography to directly measure the content of individual compounds so it has much lower detection limits and is more appropriate for VOC testing of the new generation of low VOC and zero VOC interior paints and finishes. Due to these clear advantages, ASTM D6886 is recognized as a compliance pathway for analysis of paints in LEED v4.
A new Materials and Resources (MR) credit in LEED v4 has two options, one promoting Material Ingredient Reporting, and the other for Material Ingredient Optimization. A feature of Material Ingredient Reporting is that manufacturers can report the contents of their product using a combination of direct reporting by chemical name and CASRN and reporting by ingredient hazard properties. This creates the possibility for manufacturers to protect proprietary formulation information. For Material Ingredient Optimization, the hazard properties of chemicals are to be assessed using GreenScreen v1.2, a design for the environment tool developed by Clean Production Action. GreenScreen v1.2 considers 18 human and environmental hazard attributes. An individual chemical ingredient is scored for each of these hazards and then a defined procedure is followed to assign an overall hazard rating (i.e., Benchmark) to the ingredient. For products to qualify for the Material Ingredient Optimization option and credit, they must be free of GreenScreen Benchmark 1 chemicals. Benchmark 1 identifies chemicals to avoid. These consist of high concern human toxins (e.g., carcinogens, mutagens, reproductive toxins, endocrine disruptors) and high concern ecotoxins. Ask BkA about the ingredient reporting and chemical hazard scoring and rating processes that are needed for both of these credit options.