Red List
Red List Free Materials for Green Building
Introduction to Red List Free Materials
Concept of Red List Free Materials:
Designing homes that are healthier for individuals and better for the environment.
A core idea is to select materials that do not contain harmful chemicals, thus improving the overall health of occupants.
Importance of Red List Free Materials
Red List materials help meet standards like the Living Building Challenge:
Emphasizes buildings that contribute positively to their surroundings.
Established by the International Living Future Institute (ILFI).
Purpose: Identify chemicals in building products harmful to human health and the environment.
Chemicals Identified on the Red List
Includes substances known to be hazardous:
Formaldehyde:
Found in pressed wood products.
Phthalates:
Commonly used in plastics.
Heavy Metals:
Includes mercury and cadmium.
Definition of Red List Free:
A material classified as red list free means it does not contain any red list chemicals.
Examples of Red List Free Materials
Natural and minimally processed options:
Untreated Wood:
Sourced sustainably.
Clay Plasters:
Used for wall finishes.
Linoleum:
Often free from harmful chemicals.
Benefits of Using Red List Free Materials:
Improvement in indoor air quality.
Reduction of health risks for inhabitants.
Building Standards and Compliance
Living Building Challenge Requirements:
90% of building materials (by cost) must be Red List free.
Exceptions allowed for small components or complex products documented thoroughly.
Manufacturer Transparency:
Importance of detailed ingredient disclosures.
Programs like the Declare label aid this transparency by listing all product ingredients.
Market Growth and Research Necessity
Increasing availability of Red List Free materials but research may be required:
Builders are encouraged to inquire about ingredient lists.
Search for third-party certifications.
Temporary exceptions may exist but the underlying goal remains the same: trending towards safer options.
Health and Environmental Implications
Supporting healthier indoor environments through material choices aligns with sustainable building practices:
Promotes energy-efficient construction.
Aims for regenerative building outcomes.
Urgency and necessity of restorative action:
Current environmental crisis necessitates the choice of safer materials in construction projects.
Chemical Exposure and Safety Regulations
Overview of chemical use in products:
Chemicals are ubiquitous in daily life, e.g., fabrics, furniture, food packaging.
Approximately 86,000 chemicals reported by the EPA under the TSCA inventory.
As of 2023, over 42,000 of these are active but many lack adequate risk evaluation.
Living Building Challenge Red List
Definition of the Red List:
A comprehensive list citing serious health risks and environmental hazards.
Contains over 800 chemicals known to be toxic.
Mandates that 90% of material costs must not involve Red List chemicals for certification.
Common Red List Chemicals:
Asbestos:
Historically used for insulation; known carcinogen.
Lead:
Found in paints and pipes, responsible for various health issues.
Vinyl Plastic (PVC):
Associated with health concerns and environmental persistence.
ILFI's Management of the Red List and Declare Program:
The Declare label enhances product transparency to help builders select safer materials.
Resources for Builders and Designers
Using Declare labels as a straightforward resource:
Products can be Declared as Red List Free or with temporary exceptions.
Comprehensive checks are required for Red List compliance, promoting sustainable material use (recycled, salvaged, responsibly sourced).
Certification Recognition:
Sustainable programs like LEED (Leadership in Energy and Environmental Design) also recognize Declare labels.
Future Directions and Recommendations
Need for consumer awareness and engagement with sustainable materials:
Ask manufacturers for ingredient transparency.
Think critically about materials used in both personal and professional settings.
Urgent action is required to transition to a regenerative society:
Encourage manufacturers to innovate and adopt safer materials.
Collective responsibility to support businesses that prioritize health and the environment.