Greater Manchester Major Trauma Hospital
See how K-Roc Rainscreen Slab provided a Euroclass A1 insulation solution for Salford Royal Hospital
Case Study4 min read
Baytree Specialist School provides dedicated facilities for children and young people with profound and multiple learning difficulties (PMLD). To meet rising demand for places, North Somerset Council invested £18 million to expand the campus with a new building, providing leading facilities for students.
The new single storey building, constructed at a second site, will increase the school's overall capacity to around 120 places for students aged between 3 and 19. The building work has been overseen by Wilmott Dixon and includes a number of classrooms, a recreation hall, specialist therapy rooms and a hydrotherapy pool.
In line with planning requirements set by North Somerset Council, the new building needed to incorporate efficient, low energy solution
LOCATIONWeston-super-Mare, UK
ArchitectRio Architects
ProductsK-Roc Rainscreen Slab
The building was designed to achieve a 25% improvement on the carbon emissions targets set under the 2013 version of Part L of the Building Regulations. This included a fabric specification featuring K-Roc Rainscreen Slab.
The new building features a steel frame construction with a rainscreen façade. Rio Architects developed what they described as a calm architectural approach, using familiar materials and shapes that were domestic in scale and respectful of the surrounding context. They chose to form the principal façade with a masonry facing, incorporating sections of aluminium cladding and curtain walling. A 110 mm thickness of K-Roc Rainscreen Slab was fitted within the rainscreen system.
The rock mineral fibre insulation achieves a European Classification (Euroclass) A1 rating and use of the product in thicknesses from 30 to 200 mm is covered by BBA Certificate 20/5845.
The insulation slabs achieve a thermal conductivity of 0.034 W/mK, supporting the complete construction to achieve a U-value of 0.15 W/m2K. This notably improves on the U-values set out in the Notional Building specification under both the 2013 and 2021 version of Part L in England and should help to support energy efficient and cost-effective operation of the new school.
K-Roc Rainscreen Slab is manufactured under a management system certified to ISO 9001: 2015 (Quality management systems) and ISO 14001: 2015 (Environmental management systems).
Page updated 11/08/2025
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K-Roc Rainscreen Slab
Insulation for use behind rainscreen façades, including steel and timber frame systems with a masonry outer leaf
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