Mycelium fights climate change.

• The construction industry is exploring ways to reduce its carbon footprint, particularly in the production of fired clay bricks.

• Mycelium bricks, made from husk, sawdust, and fungal spores, are biodegradable, fire-resistant, and insulative bricks.

• These bricks can reduce the building sector’s carbon footprint as they are lightweight and good heat insulators.

• However, mycelium materials need improvement, including the ability to bear heavier loads for longer periods, being susceptible to moisture, and biodegrading in a few years.

• Despite their fire-resistance, prolonged exposure to heat could cause structural failure.

• Mycelium composites absorb more moisture than synthetic foams and plywood, making them unsuitable for damp environments.

• Treatment with non-toxic flame retardants and a UV-protective coating can enhance fire resistance.

• The biggest challenge is consumers’ attitudes, which will require more investment in research and development and awareness campaigns.

• Despite these challenges, interest in alternative and sustainable materials is growing due to climate change and high-performance buildings.