Mycelium Fungi as a Building Material
Last Updated: Feb 19, 2025Mycelium is a natural fungi material with industrial-level strength that has been explored in recent years as a potential building material. This emerging material could be used as the building blocks (literally) for future homes!
Table of Contents
- What Is Mycelium?
- Why Would We Want to Build Homes With Fungi?
- Case Study: The Hy-Fy
- Case Study: The Growing Pavilion
- Case Study: "Biocycling" Old Homes with Mycelium to Build New Ones
- Case Study: The Shell Mycelium Installation
- Case Study: MycoTree
What Is Mycelium?
The mycelium of fungus refers to the fragile root-like fibers of fungus that live underneath the ground. Mycelium is 100% organic, compostable, and biodegradable. When it is dried, it becomes incredibly durable and resistant to water, mold, and fire.
To date, mycelium has most often been used for packaging purposes. One company, Ecovative Design, has discovered ways to use mycelium for more than packaging. They are creating alternative meat products, animal-free leather, skincare products, and more. With their fabrication process, they can control the texture, strength, and porosity of mycelium-based products.
What sets mycelium apart from other materials is its ability to regenerate at a quick rate. It can even be used for 3-D printing and is non-toxic, insulating, and all-natural. Mycelium has the potential to create a new paradigm for design in the building industry.
Why Would We Want to Build Homes With Fungi?
This concept sounds strange, but it may grow on you! (pun intended)
With the ever-rising environmental impact of buildings, the industry is uniquely positioned to explore cutting-edge technologies. When we hear the term 'technology,' we typically assume it refers to the technology within a building like HVAC units or smart thermostat controls. However, there are endless opportunities to discover innovative technologies that may influence future construction standards.
Standard building materials like concrete and steel are significant contributors to the building industry's sizeable environmental impact. To achieve ambitious environmental goals in the building industry, research into unconventional materials must be explored. Mycelium, in brick form, is one of the most promising new materials currently being investigated.
Although mycelium has been researched as a potential building material by many from a theoretical standpoint, few examples of it are used to construct a building. Here we will walk through a few case studies where mycelium has been used for state-of-the-art projects, illustrating the range of applications for this new material.
Case Study: The Growing Pavilion
As evidenced by its name, the Growing Pavilion was built with naturally-forming fungi that can self-assemble. This temporary structure was erected for Dutch Design Week and was host to multiple events.
This structure, made entirely from bio-based materials, integrated mushrooms, mycelium, timber, and a bio-based coating originally developed by Inca people around the 12th century. The timber frame was built first, then panels made from mushrooms and mycelium were attached to the frame. These lightweight panels could be removed easily and repurposed for other uses.
The Growing Pavilion aimed to be a temporary structure for Dutch Design Week. Due to the project's success, the team who designed it is now working on a pavilion design that will last outside, in the elements, for multiple years.
Case Study: "Biocycling" Old Homes with Mycelium to Build New Ones
An architecture firm in Cleveland is working on a technique to demolish derelict homes and combine fungus with demolition debris to form new building materials. This process is called "biocycling," where demolition waste is broken down and combined with mycelium to add industrial-level strength that binds the material as it grows. Then, the combined elements are compressed to create new building materials. These materials can then be cut into bricks or used as insulation. This approach could help combat housing issues in North America by affordably recycling older homes into newer ones.
Design firms, such as Redhouse Architecture, believe that this process could even be used for disaster relief housing. It could provide homes that may last for only a few years and then be composted at the end of their useful lives. In addition, it may be a solution for communities in developing countries.
Maria Saxton
Located in Roanoke, Virginia, Maria Saxton holds a Ph.D. in Environmental Design and Planning from Virginia Tech. She works as an Environmental Planner and Housing Researcher for a local firm specializing in Community Planning, Architecture, Landscape Architecture, and Historic Preservation. Her dissertation explored the environmental impacts of small-scale homes. She serves as a volunteer board member for the Tiny Home Industry Association.
