How To
Why Make a Living Sound Baffle?
A sound baffle reduces noise, absorbs echoes, and improves acoustics in a space. By incorporating foam sheets, cardboard, and Tillandsia recurvata (Ball Moss), we can create a functional, beautiful, and sustainable acoustic panel that also purifies air and supports biodiversity.
This method follows the ReLeaf ethos—turning waste materials into adaptable, living systems that evolve with their environment.
Materials Needed
- Foam Sheets – For high-frequency sound absorption
- Cardboard Panels – For structure and lower-frequency absorption
- Fabric Wrap (repurposed cloth or burlap) – To enhance mid-range sound absorption and aesthetics
- String or Wire – For securing components and attaching moss
- Tillandsia recurvata (Ball Moss) – For natural air purification and sound diffusion
- Scissors or Box Cutter (Cut) – For shaping materials
- Non-toxic Adhesive (Optional) – For securing layers
Step-by-Step Instructions
1. Cut and Layer the Base
- Cut a Cardboard Panel to the desired size.
- Attach Foam Sheets on top, covering as much surface as possible to maximize high-frequency absorption.
- Leave an air gap (25–100 mm) behind the panel if mounting on a wall to improve low-frequency absorption.
2. Secure with a Fabric Wrap
- Stretch burlap or repurposed cloth over the foam to improve aesthetics and enhance mid-range frequency absorption.
- Fasten at the back using string, staples, or non-toxic adhesive.
3. Optimize Pore Size and Spacing
- Perforate the cardboard (if needed) to create varied pore sizes for absorbing a broader range of frequencies.
- Leave evenly distributed pores in the fabric to allow sound waves to pass through.
4. Attach Tillandsia recurvata (Ball Moss)
- Use string or wire to secure clusters of Ball Moss onto the fabric wrap.
- Distribute the moss evenly to ensure natural sound diffusion while maintaining airflow.
- Avoid adhesives that might harm the plant.
5. Mount the Baffle
- Wall-mounted: Use hooks, brackets, or nails to attach the panel, leaving an air gap behind it for better absorption.
- Ceiling-suspended: Use string or wire to hang at various angles for maximum sound diffusion.
- Freestanding: Attach to a frame or stand for a movable partition.
6. Maintain the Living Baffle
- Mist the Ball Moss once or twice a week, adjusting based on humidity.
- Trim dead growth to encourage new coverage.
- Monitor for structural integrity, replacing materials as needed.
Why This Works
- Upcycled & Sustainable – Repurposes waste materials for functional, eco-friendly design.
- Multi-Layered Sound Absorption – Foam, fabric, perforated cardboard, and moss work together.
- Natural & Self-Sustaining – Ball Moss requires minimal care and improves air quality.
- Modular & Adaptable – Can be resized, reshaped, or expanded.
By merging functional design with living systems, this upcycled sound baffle demonstrates how sustainability, beauty, and efficiency can coexist.
What other materials could be integrated into living acoustic solutions?
Parts