Technology · Biochemistry & industrial biotech / Polymers & materials

Bio-isolation (hemp wool, mycelium, straw, cork)

Bio-based building insulation materials including hemp wool, mycelium composites, straw panels, and expanded cork.

Risk: low Construction US · CN · EU Science: why it works → verified 2026-06-28 · 6 Sources (0 independent)

1 · What it gives

The bio-based building insulation sector is one of the fastest-growing and ecologically significant segments of the modern circular construction bioeconomy. Traditional insulation materials like mineral wool, fiberglass, and polyurethane foam carry extremely high embodied carbon, requiring temperatures over 1400°C to melt stone or glass, or relying on petrochemical feedstocks. Bio-insulation materials offer thermal conductivities around 0.038 W/m·K, comparable to synthetic options, while acting as carbon sinks. 1 kg of bio-insulation can sequester up to 2.0 kg of atmospheric CO2, transforming buildings from carbon emitters to carbon storage banks.

The key directions of bio-isolation are:

Hemp Wool: Soft, elastic insulation mats made from hemp bast fibers combined with biopolymer binders.
Mycelium Insulation: Biocomposites where fungal mycelium binds agricultural waste into lightweight, rigid boards.
Straw Panels: High-density boards produced by heat-pressing straw, utilizing natural lignin as a binder.
Expanded Cork: Natural, sustainable insulation made by expanding cork bark granules with steam, requiring no synthetic glues.

Sectoral value chain#

[Agricultural Feedstock] ──> [Fiber Preparation] ──> [Compounding] ──> [Molding & Bonding]
                                  │
                          (Drying)
                                  │
                                  ▼
[Installed Insulation] <─── [Finishing & Packaging] <─────┘

Value chain levels#

Level	Description	Key inputs/outputs
Agricultural Feedstock	Harvesting hemp, straw, or cork.	In: Farmland, seeds, bark. Out: Raw plant material.
Fiber Preparation	Processing raw material into fibers or granules.	In: Raw straw, hemp stalks. Out: Calibrated fibers.
Compounding	Mixing fibers with binders or mycelium spawn.	In: Fibers, PLA, fungal spawn. Out: Moist substrate.
Molding & Bonding	Shaping and binding the material into boards.	In: Substrate, molds. Out: Formed wet boards.
Finishing & Packaging	Trimming, fire-retardant treatment, and packing.	In: Formed boards, borates. Out: Packaged insulation.
Installed Insulation	Integration into building walls and roofs.	In: Packaged insulation. Out: Energy-efficient buildings.

Cross-cutting technologies of the sector:

Airlaid Carding: Aerodynamic web forming for soft, resilient fiber mats.
Solid-State Fermentation: Cultivating mycelial networks within agricultural substrates.
Steam Expansion: Utilizing superheated steam to naturally expand and bind cork granules.

2 · What it replaces 3 · matched by industry

D2E2	Bio-based building insulation — wood-fibre boards, hemp and flax mats, cellulose, straw, hempcrete, mycelium panels — instead of polystyrene/polyurethane foams with brominated or chlorinated flame retardants and isocyanate spray foams Replaces: EPS/XPS polystyrene with HBCDD (historic) and polymeric brominated flame retardants; polyurethane/PIR foams with TCPP (chlorinated phosphate …	BUILD
D1E–	Formaldehyde-free wood-based panels (plywood, particleboard, MDF) with bio-based adhesives — soy-protein, lignin, tannin and other bio-adhesives — instead of urea-formaldehyde (UF), melamine-UF and phenol-formaldehyde resins Replaces: Urea-formaldehyde and melamine-urea-formaldehyde resins (most interior panels), phenol-formaldehyde (partly)	BUILD
D0E–	Self-healing bio-concrete and microbial repair mortars (bacteria producing limestone, microbially induced calcite precipitation, MICP) — instead of epoxy and polyurethane crack injection and some chemical sealants Replaces: Epoxy and polyurethane (isocyanate) crack-injection resins and coatings for concrete repair (partly); repeated repair cycles	BUILD

3 · How to implement 6 steps

1
Fiber BlendingFormulation & blending
Bale openers dose and mix purified hemp bast fibers with low-melting PLA binder fibers, creating a homogenous blend.
Who can do this step matched automatically
Advanced Enzyme Technologies (NSE) India
✓ ISO 9001 500 m3
“This is a satellite blending, mixing and formulation facility, located at Vashind near Shahapur and dedicated to the company’s Animal Nutrition business.”
India Glycols (NSE) India
✓ ISO 9001 7,500 MT/ industrial scale
“Recent expansions and new facilities across процесses: MEG production growth (up to 200,000 MTPA), EO purification, ethoxylate, sulphation, formulation plants, and …”
2
Airlaid Web Forming
The fiber blend is blown pneumatically onto a moving mesh conveyor under vacuum, forming a thick, randomly oriented fiber mat.
3
Thermal Bonding
The web passes through a continuous convection oven at 145°C, melting the outer sheath of the PLA fibers to create strong, elastic bonding points.
4
Fire Retardant Coating
A high-pressure spray applies a fine mist of environmentally safe borates to the moving web, ensuring class B fire resistance.
5
Cutting & PackagingPackaging & fill-finish
Automated knives cut the continuous mat into standard batts, which are then compressed into biodegradable shrink wrap to minimize shipping volume.
Who can do this step matched automatically
Stora Enso Finland
✓ ISO 9001 industrial scale
“Together with our customers, we design and deliver competitive, high-quality packaging materials and solutions, made from fresh and recycled fibers, accelerating the transition to …”
India Glycols (NSE) India
✓ ISO 9001 7,500 MT/ industrial scale
“Key partners/customers mentioned: Bacardi bottling tie-up; JV with Clariant; tech partnerships with Wittemann, Hitachi, Air Liquide and Praxair; global/brand partnerships …”
Alterpacks Singapore
“[Alterpacks - New Materials Solutions — AlterPacks is a Singapore-based startup that develops sustainable packaging materials sourced from agricultural by-products.”
Pakka (ex-Yash Pakka) India
1940 MT per annum industrial scale
“Pakka Limited (located in Ayodhya, India) provides regenerative packaging solutions for food products.”
6
Quality TestingTesting & analytics
Samples are tested using heat flow meters to verify thermal conductivity (0.039 W/m·K) and checked for dimensional recovery after compression.
Who can do this step matched automatically
Suzano (B3: SUZB3) Brazil
✓ ISO 9001
“ISO 17025”
GenScript ProBio / Genscript China
industrial scale
“ProBio: A global CRDMO (contract research, development, and manufacturing organization) providing end-to-end solutions for biologics and cell and gene therapy (CGT).”
Turion Labs Singapore
“Turion Labs is a Singapore-headquartered biotech innovation platform that provides shared laboratory infrastructure, contract research organization (CRO) services, and regulatory …”

4 · Who delivers

Matched suppliers (matched automatically)

Ecovative	United States	Producer	active
Mycotech Lab (MYCL)	Indonesia	Producer	active
UPM	Finland	Producer	active
MycoWorks	United States	Producer	active

In the services and supply catalogue 3 · paid service

Biopolymers & materials · Feedstock & biomass · Contract manufacturing (CMO/CDMO/toll)

Leading companies and institutes (from the brief)

Company / Institute	Country	Key products / platforms	Tech features	Status 2026
Steico SE	🇩🇪 Germany	Wood & hemp insulation	Flexible fiber mats	commercial
Amorim Cork	🇵🇹 Portugal	Expanded Cork Board	Steam expansion	commercial
Hempitecture	🇺🇸 USA	HempWool®	Airlaid fiber webs	commercial
Ecovative Design	🇺🇸 USA	MycoComposite®	Solid-state fermentation	commercial
Biofib’	🇫🇷 France	Biofib’ Trio	Multi-fiber blends	commercial
Wanhua Ecoboard	🇨🇳 China	Straw panels	Large-scale hot pressing	commercial

5 · Rules & route to market

Route into Russia / EAEU: BUILD · Ministry of Construction (Minstroy) / certification bodies
technical certificate within 10 working days under the 2022 special procedure, plus testing
Information, not legal advice — confirm the procedure for your product. (2026-10-06)

United States

The US is actively expanding the use of bio-insulation, supporting biotech materials startups to reduce building heat loss and lower embodied carbon.

DOE efficiency, Green purchasing, Mycelium scaling#

Federal initiatives: The DOE provides grants for high-efficiency, low-carbon building materials.
Mycelium leadership: US startups pioneer global licensing of mycelium-based composite technologies.
Hemp infrastructure: New large-scale manufacturing facilities are coming online to produce hemp wool insulation.

European Union

The European Union leads global regulation of bio-based construction materials, driving adoption through strict building codes and subsidies.

RE2020 mandate, Wood fiber dominance, Cork insulation#

Regulatory drivers: France’s RE2020 imposes strict limits on embodied carbon, heavily favoring bio-sourced insulation.
Market leaders: European companies dominate global production of wood fiber, hemp, and cork insulation.
Deep renovation: The EU Renovation Wave prioritizes bio-insulation for retrofitting the existing building stock.

China

China focuses on massive-scale utilization of agricultural residues, primarily straw, to produce dense ecoboards and prevent field burning.

Straw utilization, Green building targets, Biomass R&D#

Policy mandates: MOHURD requires a 30% increase in renewable building materials by 2030.
Industrial scale: Massive factories process wheat and rice straw into formaldehyde-free structural and insulation boards.
Academic research: Institutes develop advanced fungal strains for rapidly growing mycelium composites on rice husks.

6 · Money: tenders & grants

Grant	Capacity Building Grants for Non-Land-Grant Colleges of Agriculture Program National Institute of Food and Agriculture · United States	Nov 10, 2026 25 days
Grant	Capacity building for extending product lifecycles through repair and refurbishment European Commission · EU	Sep 22, 2027 341 days
Grant	Increasing riparian and coastal areas resilience to climate change, including in waterfront cities and … European Commission · EU	Sep 21, 2027 340 days

7 · Tech stack & innovations

Bio-insulation development relies on textile non-woven processes, solid-state fungal fermentation, and the thermodynamics of porous systems.

Airlaid Carding and Thermal Bonding:
- Hemp fibers (85%) are mixed with bio-based PLA binder fibers (15%).
- An aerodynamic process forms a bulky web which is thermally bonded at 145°C.
Solid-State Fermentation of Mycelium:
- Sterilized agricultural waste is inoculated with fast-growing fungal strains.
- Mycelium networks bind the substrate in 5–7 days before thermal deactivation at 85°C.
Steam Expansion of Cork:
- Cork granules are subjected to superheated steam at 300°C.
- Granules expand by 30% and natural suberin melts, acting as an organic binder.

Sources 6 · 0 independent · 6 producer sites

Producers' own sites 6

Steico producer checked 2026-05-15 · link not kept
Amorim cork producer checked 2026-05-29 · link not kept
Hempitecture producer checked 2026-05-28 · link not kept
Ecovative producer checked 2026-06-08 · link not kept
Biofib producer checked 2026-05-08 · link not kept
Wanhua ecoboard producer checked 2026-06-28 · link not kept