Mycelium Bricks: A Sustainable Alternative to Traditional Clay Bricks

In the wake of climate change and the growing need for sustainable solutions, the construction industry is exploring eco-friendly materials to reduce its carbon footprint. One such innovative material is mycelium bricks, made from the fibrous network of fungi. These biodegradable and fire-resistant bricks offer good insulation and can significantly reduce the 300 million tonnes of CO₂ emissions caused by traditional fired clay brick production. However, while mycelium bricks hold great potential, they currently face structural limitations, moisture vulnerability, and higher production costs, especially in India’s tropical climate.

Key Highlights

What are Mycelium Bricks?

• Made from mycelia (fungal filaments), combined with husk, sawdust, and fungal spores.
• Solidifies into a lightweight and durable structure within a few days.

Advantages of Mycelium Bricks

• Eco-friendly and biodegradable.
• Fire-resistant and good thermal insulators.
• Lightweight and suitable for interior paneling.
• Potential use in liquid filters, sports equipment, and printed circuit boards.

Challenges Faced

• Low load-bearing capacity (two times weaker than concrete).
• Highly susceptible to moisture, leading to fungal decay.
• Short lifespan (biodegrades within a few years).
• High production costs due to lack of infrastructure.
• Vulnerable to termite attacks and structural failure under heat exposure.

Solutions to Overcome Challenges

• Treat with non-toxic flame retardants for fire resistance.
• Apply UV-protective coatings to prevent photo-degradation.
• Investment in research and development to enhance strength and durability.
• Increase awareness campaigns to shift consumer mindset.

India’s Perspective

• Tropical climate accelerates moisture absorption and fungal decay.
• Requires policy support and infrastructure development.
• Growing interest in sustainable materials and high-performance buildings can boost demand.