General Construction Boards
Produce General WWCB Construction Boards
Thick, low-density construction boards follow the same production process as their thinner acoustic counterparts, however different (often thicker) moulds being used and often switching from white cement to grey cement. These boards are ideal for wall cladding and general construction, offering non-combustible properties, sound absorption, and a healthier indoor climate due to the natural characteristics of wood wool. Their low density provides excellent thermal insulation, while their durability makes them suitable for a wide range of applications. Environmentally friendly and made from sustainable materials, these boards offer long-lasting performance (over 80 years) in construction projects.
Key features of low-density boards
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wood wool width: 2 or 3 mm
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panel thickness: up to 100 mm
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density: 350 – 500 kg / m³ (subject to thickness)
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breathable material for improved indoor climate
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acoustic performance: Rw~35-40
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thermal conductivity (λ): 0.066 W/mK
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fire rating: Euroclass B-s1,d0, optionally as non-combustible A2-s1,d0
FAQ
How do these boards perform in terms of fire resistance?
WWCBs are inherently fire-resistant, achieving classifications such as B-s1,d0 and A2-s1,d0 (non-combustible) according to EN standards. The inclusion of mineral wool, EPS or XPS cores enhances this fire resistance, providing added safety in building constructions.
What are the electric power requirements to operate a WWCB plant?
For the Eltomation production line alone, the estimated installed capacity is approx. 900 kVA. When adding finishing operations, total installed power requirements are estimated at 1800 kVA.
How can you promote sustainable products if cement is used in the recipe?
While cement production contributes to CO₂ emissions, the industry is actively working on solutions to reduce its impact. In WWCB production, more than half of the board’s mass consists of renewable wood and water, making it a more sustainable option than many traditional building materials. Additionally, the low density of WWCB means that less material is needed to cover a given volume, further improving its environmental footprint. In general, we can state that 1 m³ of wood used creates approx. 4 m³ of end product.
Our plants are designed to (optionally) use LC3 cement as a lower-carbon alternative to standard Portland cement without compromising board quality. In addition, many of our clients add a percentage of limestone to reduce the overall cement content, further lowering emissions while maintaining durability and performance.
Do you also provide technical assistance in the ramp up phase?
Yes. Several Eltomation personnel will remain on site for 6 weeks after first commissioning to make sure the plant runs smoothly, and local operators / supervisors are properly trained.
Have other questions?
We would love to get in touch to discuss your needs.
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