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Rockwool creates ‘UK’s lowest lambda stone wool’

As pressure mounts on the construction industry to deliver more thermally efficient buildings while preserving high standards of fire and acoustic performance, Rockwool has launched NyRock technology.

Dubbing it ‘an evolution in stone wool composition that delivers the lowest lambda stone wool insulation available in the UK’, it explains that the product was created using a new patented production process, adding that this ‘next generation’ stone wool insulation has a more efficient fibre structure that can deliver thermal conductivity as low as 0.032 W/mK. “Critically,” Rockwool explained, “this means U-values can be met with comparatively thinner constructions, which with external wall applications ,this  creates the potential for additional interior floor space over a given building footprint.”

Alongside its improved thermal efficiency, NyRock technology still delivers all the additional benefits of stone wool insulation, including durability, the ability to be recycled indefinitely, and acoustic and fire performance. Comprising naturally non-combustible volcanic rock, Rockwool solutions ‘powered by NyRock technology’ achieve Euroclass A1 – the highest rating – and can withstand temperatures in excess of 1000 °C.

Paul Barrett, head of Product Management, Rockwool UK, said: “While stone wool insulation is already known for its proven benefits – such as longevity, ease of installation, circularity, and non-combustibility – our patented technology builds on these advantages further. Whether specifiers need a solution to the lower U-values of England’s new Approved Document L that also maximises floor space, or a non-combustible option for a high-rise property with enhanced thermal and acoustic performance, NyRock’s industry-leading lambda value for stone wool, and ability to reduce the thickness of a construction element, support those requirements.”

 

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