Are Roofing Shingles Toxic?

Are roofing shingles toxic? Roofing shingles themselves are generally not considered toxic.
Modern shingles can release dissolved organic carbon, which can interfere with rainwater collection activities, but they are not harmful unless one is trying to collect potable rainwater from the roof.
Key Takeaways
- Health Concerns: Certain roofing shingles can release toxic chemicals, posing health risks.
- Types of Shingles: Asphalt, wood, and synthetic shingles are common, each with varying toxicity levels.
- Safer Alternatives: Eco-friendly shingles, such as solar or recycled materials, are less harmful.
- Proper Disposal: Disposing of old shingles properly is crucial to minimize environmental impact.
- Preventive Measures: Wearing protective gear and ensuring good ventilation during installation can reduce risks.
Types of Roofing Shingles and Their Toxicity Levels
Asphalt Shingles: Popular but Potentially Harmful
Asphalt shingles are the most common roofing material. They are affordable and easy to install. They contain petroleum-based products and can release volatile organic compounds (VOCs), especially when new or in hot weather.
Health Impacts of Asphalt Shingles
- Short-Term Exposure: This may cause headaches, dizziness, and respiratory irritation.
- Long-Term Exposure: Linked to chronic respiratory issues and other health problems.
Wood Shingles: Natural but with Caveats
Wood shingles, often made from cedar, are prized for their natural look. While they don’t contain the same chemicals as asphalt, they can still pose risks, especially when treated with preservatives or fire retardants.
Risks of Treated Wood Shingles
- Chemical Leaching: Can release harmful chemicals into the environment.
- Mold and Mildew: If not properly maintained, it can lead to harmful mold growth.
Synthetic Shingles: A Safer Alternative?
Synthetic shingles, made from recycled materials or rubber, are emerging as a safer alternative. They often mimic the look of traditional shingles but with fewer toxic components.
Advantages of Synthetic Shingles
- Lower Toxicity: Generally contains fewer harmful chemicals.
- Durability: Resistant to mold and mildew, reducing health risks.

Eco-Friendly Roofing Options: Reducing Your Toxic Footprint
Solar Shingles: Harnessing the Power of the Sun
Solar shingles not only provide roofing protection but also generate clean energy. They are a non-toxic, sustainable choice for environmentally conscious homeowners.
Recycled Material Shingles: Turning Waste into Worth
Shingles made from recycled plastics or rubber are less toxic and reduce landfill waste. They offer an eco-friendly roofing solution without compromising quality or durability.
Installation and Maintenance: Minimizing Health Risks
Proper installation and maintenance are key to reducing the toxicity of roofing shingles. This includes:
- Ventilation: Ensuring good air circulation during installation.
- Protective Gear: Wear masks and gloves to minimize exposure to chemicals.
- Regular Maintenance: Checking for damage, mold, or leaks to prevent health hazards.
Proper Disposal: Protecting the Environment
When replacing your roof, disposing of old shingles properly is crucial. Many old shingles can be recycled, reducing environmental impact and preventing the release of toxins into landfills.
Making Informed Choices for Your Roof
While some roofing shingles can be toxic, safer alternatives are available. By choosing eco-friendly materials, practicing safe installation techniques, and disposing of old shingles responsibly, you can minimize health risks and positively impact the environment.
Remember, the safety of your roofing materials affects your immediate health and has long-term environmental implications. Make informed choices for a safer, healthier home and planet.