Tuesday, November 18, 2025
The construction sector faces a huge environmental impact, with building materials, especially insulation, contributing critically to global carbon dioxide emissions (42%). Addressing this critical challenge head-on, the Finnish startup Fiberwood is pioneering a new generation of sustainable building materials by harnessing industrial side streams. This ambitious work was recently celebrated when Fiberwood secured the Silver Award in the highly competitive 2025 New Wood Competition, a major showcase for Finland’s most impactful wood-based innovations.
The competition’s jury emphasised the global relevance of this approach. Martta Fredrikson, Chair of the New Wood jury and Managing Director of the Finnish Forest Foundation, noted the competition’s focus on material optimisation. “This year’s competition particularly emphasised the use of industrial side streams. The winning lignin-based tyre material and the wood fibre insulation, which came in second, are excellent examples of this,” Fredrikson stated. This highlights a clear trend in the bioeconomy: transforming waste products into high-value, performance-competitive solutions.
Fiberwood’s core innovation lies in its ability to upcycle what the forest industry once considered low-value byproducts. The company utilises wood pulp and side streams from the mechanical wood industry, transforming them through a proprietary foam technology into a suite of versatile, plastic-free products, including insulation, acoustic panels, and packaging materials.
The resulting products possess a critical environmental advantage: they are carbon-negative. As the wood naturally binds atmospheric carbon dioxide during its growth, that CO2 remains sequestered within the insulation material for its entire lifespan within the building. Furthermore, the materials are designed to be 100% recyclable and ultimately biodegradable, returning safely to the soil without leaving behind microplastics, offering a true circular economy solution.
Tage Johansson, CEO of Fiberwood, emphasised the dual mandate driving the company’s development: “The construction industry needs materials that are not only ecological but also competitive in performance. This is where Fiberwood stands out: we combine industrial scalability, carbon negativity, and high technical quality.” This capability directly addresses the common industry trade-off between sustainability and performance, offering a product that is both environmentally superior and technically robust.
To accelerate the path to market, Fiberwood is currently constructing a demo plant in Järvenpää, Finland. This facility will serve as a hub for advanced research and development, allowing the company to refine its unique production technology—which is noted for being more energy-efficient and water-wise than similar processes—and collaborate directly with domestic and international partners.
This phase is crucial for ensuring the product meets the stringent technical specifications required for wide-scale adoption in the global construction industry. Collaborating with strategic customers allows Fiberwood to tailor its wood-based foams to specific needs, such as ensuring high moisture resistance, fire retardancy, and optimal thermal and acoustic performance for various building applications.
The successful development and commercialisation of Fiberwood’s insulation is seen by experts as a major leap forward for Finland’s strategic commitment to the bioeconomy. Mari Pantsar, an entrepreneur, adjunct professor, and member of the New Wood jury, commented on the broader implications: “The use of wood-based materials in building products is an excellent example of how Finnish innovation can accelerate the sustainable development of the entire construction sector.”
The New Wood Competition, now in its sixth iteration, has cemented its status as a vital launchpad for innovations that promote sustainable development goals and address global challenges. This year’s theme, highlighting circular economy solutions, perfectly captured the essence of Fiberwood’s mission to offer an ecological and economical alternative to the dominant fossil-based insulation products.
The market potential for wood-fibre insulation is immense. The global insulation market, valued at approximately €25 billion, is ripe for disruption, especially as regulatory pressures increase the demand for fossil-free construction. By turning a low-value byproduct into a high-value, certified building component, Fiberwood not only contributes to climate mitigation but also enhances the economic competitiveness of the Finnish forest sector. The company aims to significantly boost the value of forest industry exports per kilogram, utilising resources more efficiently and easing pressures related to wood availability.
By providing a breathable, safe, and fully sustainable alternative to conventional materials, Fiberwood is positioning itself as a key player in the transition towards a truly sustainable and carbon-neutral built environment across Northern Europe and internationally.
Read more news on: wood pulp
Get such updates through woodandpanel.us
Tags: carbon negative construction, circular economy, Fiberwood, Finnish innovation, fossil-free construction, New Wood Competition 2025, sustainable building materials, wood fibre insulation
Comments: