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INSULATION; HEATING, VENTILATION & SERVICES
performance in reality as well as the commercial factors that can sometimes be barriers to specification. With this in mind, last year we introduced products featuring thermally efficient stone wool insulation with solutions for cavities and ventilated cladding systems.
By reducing the gap between design, build and ongoing performance, we can make strong inroads towards net zero
From a cavity perspective, this next generation of product provides a 13% improvement in thermal performance over the existing/standard stone wool cavity slab, plus delivers space-saving benefits. For example, to achieve 0.18 W/m²K, only a 150 mm thickness is now needed versus 175 mm of standard stone wool cavity insulation within the same build-up. Likewise, with ventilated cladding systems and sealed structures, specifiers can typically save around 15 mm on the wall thickness compared to traditional stone wool products. Applying that saving over a 22 metre x 22 metre building of nine storeys, for example, can yield an extra 99 ft2 of usable or profitable floor space.
Beyond the thermal
Climate change and the need to reduce energy consumption have necessitated a
Paul Barrett is head of product management at ROCKWOOL UK
focus on thermal efficiency as the primary driver for insulation choice; yet thermal performance should not be seen in isolation or focused on in detriment to other critical factors that affect the long-term safety and comfort of buildings.
As stone wool insulation is manufactured from naturally occurring volcanic rock, it has a natural, innate non-combustibility, meaning that many stone wool solutions achieve a European Reaction to Fire Classification of A1 – the highest possible rating. What’s more, the dense, non-directional fibre orientation of stone wool and its open porous structure, traps sound waves and reduces sound energy for acoustic performance.
Given that heating buildings equates to nearly a quarter of UK emissions, by reducing the gap between design, build and ongoing performance, we can make strong inroads towards net zero – as well as ultimately deliver better buildings for generations to come.
WWW.ARCHITECTSDATAFILE.CO.UK
ADF MARCH 2023
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