Understanding Sustainable Home Exterior Materials
Sustainable home exterior materials are those that minimize environmental impact throughout their lifecycle, from sourcing and manufacturing to installation and disposal. Key characteristics include:
- Renewable sourcing: Materials harvested from responsibly managed forests or rapidly renewable resources.
- Recycled content: Utilizing materials that have been reclaimed from waste streams.
- Low embodied energy: Requiring minimal energy for extraction, processing, and transportation.
- Durability and longevity: Lasting for many years, reducing the need for frequent replacement.
- Non-toxic: Free from harmful chemicals that can pollute the environment and affect indoor air quality.
Top Sustainable Home Exterior Material Choices
Here are some excellent options to consider when selecting materials for your home’s exterior:
Wood Siding
Wood, when sourced responsibly from FSC-certified forests, is a highly sustainable material. It’s renewable, biodegradable, and sequesters carbon.
- Cedar: Naturally resistant to insects and decay, requiring minimal treatment.
- Reclaimed wood: Adds character and reduces the demand for new timber.
Fiber Cement Siding
Fiber cement is a durable and long-lasting material made from cement, sand, and cellulose fibers. Many manufacturers are now offering fiber cement siding with recycled content. It’s also fire-resistant and relatively low-maintenance.
Brick
Brick is a durable and long-lasting material that can be made from locally sourced clay, reducing transportation costs and emissions. Consider using reclaimed brick for a unique and sustainable touch.
Stone
Natural stone is a durable and aesthetically pleasing option. Look for locally sourced stone to minimize transportation impacts. Consider reclaimed stone from demolished buildings for an even more sustainable choice.
Exploring Less Common Sustainable Options
While the above materials are quite popular, there are more niche options growing in popularity.
Bamboo
Bamboo is a rapidly renewable resource that can be used for siding, decking, and other exterior applications. It is incredibly strong and grows quickly.
Recycled Plastic
Recycled plastic lumber is durable, weather-resistant, and low-maintenance. It’s a great alternative to wood for decking, fencing, and trim.
Metal
Metal such as steel or aluminum is durable and recyclable, but has a high embodied energy. Look for options made with a high percentage of recycled content.
Making Informed Decisions
Choosing sustainable home exterior materials requires careful consideration and research.
Checking for Certifications
Look for certifications like FSC (Forest Stewardship Council) for wood products and Green Seal or Cradle to Cradle for other materials. These certifications indicate that the materials meet specific environmental standards.
Considering Location and Climate
The best materials for your home will depend on your local climate and conditions. For example, a humid environment may require materials that are resistant to mold and mildew.
Evaluating Embodied Energy
Compare the embodied energy of different materials to make the most environmentally responsible choice. This involves looking at the total amount of energy used to extract, process, manufacture, and transport the material.
Choosing Local Suppliers
Sourcing materials from local suppliers reduces transportation costs and emissions, and supports local businesses.
Conclusion
Selecting sustainable home exterior materials is a smart investment that benefits both your home and the planet. By prioritizing renewable resources, recycled content, durability, and low embodied energy, you can create a beautiful and eco-friendly home that you can be proud of. Make informed choices, consider your local climate, and look for certifications to ensure you are making the most sustainable options for your project.
