Mycelium Grown from mushroom roots, mycelium insulation is light, sturdy, and fully biodegradable — a glimpse into the future of building materials. Supply chain in Ireland: Emerging Characteristics Advantages Excellent acoustic insulation Excellent thermal insulation Grown from waste substrates Low susceptibility to fire Disadvantages Sensitive to moisture if unprotected Long production time Limited load-bearing Limited availability Possible Building Elements Internal Wall Insulation Facade External Wall Insulation Facade Rafter Insulation Roof Floor and Ceiling Insulation Floor