Policy Brief + RecommendationsBuildings’ Hidden Plastic Problem
HealthRace, Racism, and Drinking Water Contamination Risk From Oil and Gas Wells in Los Angeles County, 2020
Report
This report evaluates the risk of drinking water contamination in Los Angeles County, California, based on the proximity of supply wells to oil and gas wells, highlighting disparities in risk based on race/ethnicity and measures of structural racism.
HealthHealthy, Climate-Resilient Homes for All: Centering Housing Justice and Health Equity in Building Decarbonization
Report
This report emphasizes the need for equitable building decarbonization efforts, highlighting the importance of centering the perspectives of vulnerable communities to address long-standing inequities in housing quality and health disparities exacerbated by current policies.
HealthPFAS in Paints
Report
HBN tested 94 commercially available paint products for the presence of harmful per- and polyfluoroalkyl substances (PFAS), called “forever chemicals”. Approximately 50% of paints tested positive for fluorine, a marker of PFAS. Review the details of our findings and the recommended actions you can take.
HealthEmbodied Carbon and Material Health in Insulation
Report
HBN and Perkins&Will have released a second report aimed at transforming the way project teams select sustainable, low-carbon products. Building on the first report titled “Embodied Carbon and Material Health in Gypsum Drywall and Flooring,” a second report investigating the intersection of carbon and material health is titled “Embodied Carbon and Material Health in Insulation”.
Insulation is a unique product category that can help reduce a building’s operational carbon emissions by optimizing performance, lowering the energy required for heating and cooling. Those same materials can also negatively impact the environment by releasing greenhouse gasses throughout their life cycle. Insulation can also contain toxic chemicals that migrate into interior spaces. This report provides guidance for designers and architects to choose the best materials that takes materials health and embodied carbon into consideration.
Key Highlights from the reports include:
- Optimized Products for Material Health and Embodied Carbon: The reports show that products improving material health and embodied carbon are available across all the examined product categories: flooring, gypsum drywall, and insulation.
- Screening for Optimized Product Types: Professionals are advised to first screen for optimized product types before selecting specific products. This approach helps teams capitalize on the fact that the biggest improvements can be made by selecting different product types within a product category.
- Navigating Potential Contradictions: Acknowledging that embodied carbon and material health considerations are sometimes contradictory, the reports emphasize the importance of reviewing the provided guidance to make informed decisions.
The reports represent a significant step forward in sustainable design practices, offering actionable insights that empower professionals to make environmentally conscious choices without compromising on carbon or health priorities.
HealthPFAS Doctor’s Perspective
Report
Pediatric physician, Dr. Nicholas Newman, discusses his experience treating patients impacted by PFAS in this video by the Great Lakes Center for Reproductive and Children’s Environmental Health.
HealthPlumbing Specification Guide for AEC Professionals
Report
This comprehensive guide, designed for architects, engineers, and contractors, provides expert insights, academic research, and practical advice on various aspects of piping systems, including material properties, safety considerations, health risks, environmental impacts, and emerging trends.
HealthOrganic Fluorine as an Indicator of Per- and Polyfluoroalkyl Substances in Dust from Buildings with Healthier versus Conventional Materials
Report
A study investigated the presence of per- and polyfluoroalkyl substances (PFAS) in dust from buildings with “healthier” materials, finding lower PFAS contamination levels compared to conventional buildings, highlighting the importance of using chemical class-based methods for evaluating PFAS exposure.
HealthPaints: A Source of Volatile PFAS in Air─Potential Implications for Inhalation Exposure
Report
In this study several commercial paints were analyzed for volatile and nonvolatile per- and polyfluoroalkyl substances (PFAS), finding that paints could be potential sources of human exposure to PFAS, with one paint exceeding the reference dose for children and adults.
HealthEmbodied Carbon and Material Health in Gypsum Drywall and Flooring
Report
Project teams want buildings that are healthy for people and the planet. Two sometimes competing criteria to evaluate the sustainability of building products are embodied carbon and material health.
For this case study, Perkins&Will partnered with Healthy Building Network to identify key drivers of embodied carbon and material health by looking at specific examples of product categories frequently specified in building projects. Using flooring and drywall as examples, this study identifies some examples of where paths toward low embodied carbon and safer materials align and where they conflict.
The goal of this case study is to translate the learning from embodied carbon assessment tools and material health assessment tools into actionable guidance for manufacturers, project teams, and green building programs that will allow them to optimize decisions and promote and select healthier, low-carbon products that advance a circular economy.
HealthThe Pipe Dream of Sustainable Plastic
Resource
We have been picking on plastics a lot recently (see articles: Addressing the Plastic Crisis: Why Vinyl Has to Go and The Illusion of Plastic Recycling: Neither Just Nor Circular). This is because we believe that typically the best way to avoid hazardous chemicals is to avoid plastic altogether. With this said, we recognize plastics in buildings are currently ubiquitous (see article: Our Plastic Buildings: A New Driver of Fossil Fuel Demand).
So, let’s consider what would need to happen for plastic building products to be considered truly sustainable. Can the plastics industry do better? What are the key opportunities today to do so, and what global policy tools could promote these opportunities? These are among the key questions HBN explored in the development of a pair of case studies for the international Organization for Economic Co-operation and Development (OECD) as part of the Inter-Organization Programme for the Sound Management of Chemicals (IOMC).
Before we jump into the case study findings, first, let’s define plastics. For the purposes of this article, we define plastics to be any polymeric material, fossil fuel based or bio-based. The case studies focused on durable plastic goods, using building materials as an example.
The case studies explored both plastic flooring and plastic insulation with the goal of increasing awareness of environmental and human health impacts of plastic product production at each stage of the lifecycle and proposing policy interventions that can help move the industry toward more sustainable plastics products in general.
What would be defined as a sustainable plastic?
In the report, we created a framework for evaluating what a truly sustainable plastic product would look like. These goals are lofty, and currently no existing plastic building materials meet these goals. However, they provide a pathway towards truly sustainable products.
To be considered a sustainable plastic, a product would have to enhance human and environmental health and safety across the entire product life cycle. It would have to be managed within a sustainable materials management system, and would have to meet the following goals:
- Must be inherently low hazard.
- Hazardous substances are eliminated.
- Transparency in terms of content and emissions exists at every step of the supply chain.
- Full hazard assessments are available on all chemicals.
- Must have a confirmed commercial afterlife.
- Products designed for durability, reclamation, reuse, and recycling.
- Infrastructure exists to support reclamation, reuse, and recycling.
- Materials can undergo multiple cycles of recycling.
- Must generate no waste.
- Manufacturing scrap is eliminated at every step of the production process.
- Scrap from installation is eliminated.
- Must use rapidly renewable resources or waste-derived materials.
Trade-offs examples
The case study explores trade-offs that exist between different material choices.
For a flooring example, a product that is designed to use adhesive to install is typically thinner than one that uses a click tile system to install. These thinner products use less material per square foot and therefore have less chemical impacts associated with manufacturing and less waste at the end of life. However, adhesives may add hazardous substances to the product installation stage. By moving from a click tile product to a glue down product, chemical exposure burdens shift from manufacturing and end of life to the installation stage and use phase.
For an insulation example, a product that is designed to chemically react at the build site, such as spray polyurethane foam (SPF), can allow the insulation to form an air-sealed custom fit. However, SPF is not recyclable, and adherence of that insulation to surrounding materials may also make those materials more difficult to reclaim or recycle. Moving from XPS, EPS or polyiso to SPF may reduce the ability of other surrounding materials to “have a commercial afterlife” in the pursuit of an added performance feature.
Building awareness around these trade-offs enables stakeholders to make informed choices.
Back to reality
Now, back to reality after crafting the characteristics of a theoretical sustainable plastic. The bottom line is that there are no sustainable plastics that exist today, and we are a long way off from that day. Today, project teams need to prioritize which sustainability goals are most important and how to deal with real and significant gaps in understanding and/or data.
The case studies compared only product types made of plastic, but in reality, project teams have a wider variety of materials to choose from in any given product category. HBN’s Product Guidance considers the most commonly used product types within a product category and ranks those product types relative to one another from a chemical hazard perspective. Product types made of plant-based materials or minerals tend to rank higher than plastic products. You can apply the same sustainability goals proposed in this article to non-plastic products.
In project design, the biggest leaps towards more sustainable products from a chemicals perspective often requires consideration of vastly different materials versus making incremental improvements in chemistry for a particular product type. For example, this could mean moving from vinyl to linoleum flooring versus attempting to select the least bad vinyl option.
Check out the full flooring and insulation case studies for examples of how to use these goals to consider and choose the variety of plastic product types you will inevitably be specifying for your next project. Alternatively, challenge yourself to skip the plastics whenever possible. Even selecting one non-plastic product is cause for celebration. Make the swap!