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From Fungi to Foundations: Mycelium in construction

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From Fungi to Foundations: Mycelium in construction
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Mycelium is derived from the root structure of mushrooms and consists of a network of fine fibers known as hyphae.
via midwestgrowkits

Mycelium is a viable option in the search for ecologically friendly and sustainable building materials. Mushroom roots provide mycelium, a fungal substance made of fibers resembling roots and the vegetative portion of a fungus. The use of mycelium in constructing materials matches globally set targets concerned with persistence, henceforth offering an eco-friendly, renewable source that is also carbon-neutral, unlike common substances such as cement, plastic, and steel.

Mycelium is a type of fungal material obtained from mushrooms. The fungus fibers make up this fungal substance. It is made of hyphae, which are thin white filaments between which the fungi grow. It is used in construction to grow hyphal strands on organic substrates. The process starts by injecting fungal spores into the substrate, which then develop, spread, and bind together. This mixture is put into molds, and the required shapes and sizes are attained. After the substrate is completely covered with mycelium, it is dried to prevent further growth and to produce long-lasting material; this results in very tough, fireproof, and waterproof fibers from the mushroom root that are also environmentally friendly and decompose easily.

This article explores mycelium’s properties, its construction applications, examples of structures built using this innovative material, and the challenges and prospects.

Properties and Benefits of Mycelium

Mycelium is used in various applications, including insulation panels, bricks, and acoustic panels.
© Amorim Coutinho

Mycelium offers numerous properties that make it an attractive option against traditional building materials in the future. It is renewable, as it grows on waste products from harvests. Fungi feed on organic materials; converting them into useful building blocks decreases garbage accumulation and allows for its continued manufacture.

In addition, mycelium can decompose naturally compared to conventional building materials. Mycelium-based products also do not leave any dangerous residues or pollutants once they degrade at the end of their usefulness period, substantially lowering the environmental impact. Consequently, mycelium composites are excellent materials as they are light in weight yet possess great strength; they have toughness and tensile strength similar to those of polystyrene and particleboard.

From Fungi to Foundations: Mycelium in construction
via Critical Concrete

Another critical property of mycelium is its excellent thermal insulation capabilities, which can help lower energy consumption in buildings. These natural insulating properties make mycelium an ideal material for walls, roofs, and flooring in energy-efficient construction. Furthermore, mycelium composites are inherently fire-resistant and capable of withstanding high temperatures without emitting toxic fumes, making them a safer alternative for building construction. Lastly, because mycelium-based materials are not vulnerable to mold or pests, they make strong and durable structures.

This also adds to the sustainability property since it saves money spent on chemicals and servicing, therefore making these structures economical in the future. Together, the properties outlined above show that mycelium could be used as a sustainable building material due to its ability to not only have less impact on the environment but also provide solutions for buildings; this makes it an option worth considering in tomorrow’s environmentally friendly architectural designs.

Applications of Mycelium in Construction

Mycelium-based products can be molded into various shapes and sizes, making them versatile for use in construction.
Lego-like bricks of fungi © Courtesy of PLP Labs

The versatility of mycelium has already been recognized in many construction sectors, for example, from insulation panels to brick and even structural elements. A prominent use is the making of insulation panels, which are noted for their high efficiency in heat retention and eco-friendliness. Incorporating such panels into building walls, roofs, and floors goes a long way in boosting energy efficiency and lowering thermal expenses.

Another innovative use of mycelium is to create mycelium bricks, which are environmentally acceptable as compared to conventional baked clay bricks. These are grown in molds and customized into various shapes and sizes depending on individual preferences; they are lightweight, strong, and good for insulation. The sound absorption property of mycelium makes it fitting for acoustic panels, which are finding more use in movie houses, recording studios, or any other important places where proper sound control should be observed. This will correct the acoustics while ensuring that pollution through noise is minimized.

Furthermore, mycelium is light and can be molded into various shapes. It has created many new opportunities for furniture and interior decoration. So, designers use this property to come up with long-lasting furniture and interior elements that are both functional and aesthetically pleasing. It is possible to shape mycelium into unique and organic shapes; hence, new and unique designs emerge for homes and commercial spaces. This suggests the versatility of mycelium in creating beautiful interior spaces and its role in promoting sustainable designs. Taking everything into account, the numerous uses of mycelium in architecture and construction reflect the enormous potential for ensuring environmental friendliness and solving various functional problems connected with modern building methods.

The following are prime examples of the built masses constructed using mycelium:

The Growing Pavilion in the Netherlands

From Fungi to Foundations: Mycelium in construction
© Eric Malender

Another notable example of mycelium architecture is the Growing Pavilion, which was built in 2019. Collaborating with the Dutch Design Week and Floriade Expo, Biobased Creations designed this pavilion in Almere, the Netherlands. The structure showcased bio-based materials and sustainable building practices.

The Growing Pavilion was a building that had walls and a roof made of mycelium panels, providing excellent thermal insulation and acoustic properties. Mycelium was used in this project to show that it can be used for different purposes in modern buildings. Apart from being used as an exhibit area, this pavilion was a working laboratory used for studying how bio-based materials can be used for construction purposes.

Glastonbury Mushroom Mycelium Pavilion

Glastonbury Mushroom Mycelium Pavilion

The Mushroom Mycelium Pavilion at the Glastonbury Festival, completed in 2019, showcases an innovative blend of sustainability and festival architecture. Designed by Simon Carroll, the pavilion is made of mycelium, which enables a fire-resistant and biodegradable structure while providing natural insulation. It reflects the growth of fungi, and this encourages an architectural design that is harmonious with the organic approach of the festival, as seen in its dome-shaped appearance. The pavilion demonstrates mycelium’s potential by serving as both a functional space and an environmentally sustainable gathering spot while educating festival participants on mycelium’s possibilities in architectural design.

Chart Art Fair Pavilion

From Fungi to Foundations: Mycelium in construction
© Joakim Züger/Barks Projects

The Chart Art Fair Pavilion epitomizes innovative, sustainable design. This temporary structure was built from mycelium all through with textile; the design is modular and lightweight, with mycelium blocks interlocking at every corner to give it an organic feel. Mycelium spores have been embedded into the cloth, where they grow and disperse by feeding on a substrate consisting of sawdust and coffee grounds. Designed by Nikolaj Emil Svenningsen and Sean Lyon, in collaboration with designer Søs Christine Hejselbæk, the pavilion shows the capability of mycelium as a strong and decomposable material for construction. It has served its function by showcasing environmentally sound materials for the construction of buildings.

MycoTree

From Fungi to Foundations: Mycelium in construction
© Sustainable Construction, Karlsruhe Institute of Technology

MycoTree, completed in 2017, is a pioneering mycelium structure located in Seoul, South Korea. Designed by the Block Research Group and the Chair of Sustainable Construction at ETH Zurich, this installation demonstrates the structural capabilities of mycelium in construction.

The design consists of a complex, self-supporting structure made of mycelium and bamboo, which demonstrates a combination of innovative organic and traditional materials. It experiments with natural growth processes that form structures. The structure fulfills its purpose simply by showing the viability of mycelium as a strong material that is also eco-friendly for building construction.

The Hy-Fi Pavilion in New York

From Fungi to Foundations: Mycelium in construction
© Cecil Barnes V

The Hy-Fi Pavilion, constructed in 2014, is a groundbreaking example. This temporary structure, designed by New York architectural firm The Living on behalf of the Museum of Modern Art (MoMA), showed that mycelium could be used as an ecological alternative to conventional building materials. The building was constructed with mycelium bricks that had been grown in molds and assembled to resemble a tower.

The Hy-Fi Pavilion showed the various advantages of mushroom construction. It focused mostly on the lightweight and strong nature of the material and its capability to make complicated organic shapes. Furthermore, the building could be entirely broken down, thereby aligning it with sustainable architectural principles. At the end of the summer exhibition, the mycelium bricks were composted, leaving no residue at all.

Challenges and Future Prospects

From Fungi to Foundations: Mycelium in construction
Tree Column, 3D-printed from mushroom © Blast Studio

Even with so many advantages, there are challenges to using mycelium in construction. Among the obstacles that hinder the use of mycelium in construction, one of the most significant is the scalability of mycelium production. It can grow relatively fast; however, growing it in large quantities for the construction industry’s needs would call for more research and development efforts. Additionally, to ensure the same consistent quality and performance of the mycelium materials, there is a need for them to be standardized. Without standardization, the development of industry standards and building codes that allow for widespread adoption of mycelium products would not be possible.

However, the prospects for mycelium as a building material are promising. Ongoing research and innovation are likely to address the current challenges and unlock new applications. The construction industry is increasingly recognizing the importance of sustainability, and it offers a viable solution for reducing buildings’ environmental impact.

References 1 2 3 4

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Written by
Osama Nasir

A creative architect with a passion for art and history & a serendipitous explorer as a person. He believes architecture is made up of millions of untold stories preserved in heritage and culture. He wants to portray his concepts into the field of architecture by considering the community needs and bringing the past into the future with a minimal approach.

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