KNAUF INSULATION AND SHEFFIELD INSULATIONS WORKING IN CLOSE PARTNERSHIP
Excellent thermal performance, Knauf Insulation’s Crown SteelTherm Roll has been specified within the construction of Our Lady’s RC High School’s new state-of-the-art building, part of the Building Schools for the Future (BSF) initiative. The inherent fire resistance of the mineral wool insulation and the high level of environmental credentials also contributed to the specification.
Pupils from Our Lady’s RC High School will be moving into the new facility at the beginning of 2009. The school, in Higher Blackley, North Manchester, is part of the Higher Blackley Education Village, and is among the first projects under the Government scheme within the huge, £500 million Manchester Building Schools for the Future and Academies Programme.
The challenge for Sheffield Insulations was to find the right solution to meet Part L of the Building Regulations requirement of the SBEM (Simplified Building Energy Model)) calculations as the initial design had failed to meet the requirements. The solution also had to meet Part E acoustic requirements as well as complying with the tight budgetary requirements associated with BSF programmes.
Mark Gray, Senior Technical Adviser, Sheffield Insulations Northern Division, dedicated to the project, attended workshops with architects, main contractors and Manchester City Council to fully investigate all options. The outcome resulted in his brief to Knauf Insulation, a supply chain partner for cavity wall insulation, on the requirements for a brand new product solution to act as a full fill insulant within the steel frame cavity. From these discussions Knauf Insulation designed, manufactured and tested a new product solution, which they named ‘Crown SteelTherm Roll’. The solution was successful, meeting the thermal and acoustic Building Regulations requirements, increasing the insulation volume of material as well as working within the budgetary constraints for the project.
The solution is now part of the generic specification for the wider project being rolled out across 25 schools in the programme.
Mark Gray says, “Supplied by Sheffield Insulations Manchester branch, Knauf Insulation’s Crown SteelTherm Roll was ideal for this project. The product is specifically designed for the thermal insulation of external walls in steel frame construction, plus it combined the best qualities of glasswool, such as superb thermal performance, sound absorption and fire resistance.”
Crown SteelTherm Roll is manufactured in 600mm widths and is specifically designed for friction fitting between standard steel frame sections. The easy to handle roll is easily installed and as the product naturally knits together there is no risk of gaps between adjacent rolls or steel frames, adjoining rooms or between floors, resulting in a thermal conductivity of 0.040W/mK, with no thermal leakage
Crown SteelTherm Roll is manufactured from glass mineral wool, which is ideal for limiting the spread of fire -since it holds a Euroclass classification A1, for non-combustibility and will not burn. Nor will it give off toxic smoke or suddenly ignite in a fire due to ‘flashover’.
For public buildings such as this, superior fire performance is crucial, and the material used is in line with national guidance on design for fire safety in schools.
With the DCSF (Department for Children, Schools and Families) encouraging designers to consider as many sustainability techniques as they can in the design of new schools or refurbishments, the environmental credentials of Crown SteelTherm were very important. Crown SteelTherm Roll is manufactured using recycled glass bottles and is also recyclable at the end of the building’s life. Free from CFCs, HCFCs and any other material with ozone depletion potential in its manufacture and content the product also represents no known threat to the environment.
The innovative Higher Education Village is part of a huge £25 million investment that will provide the whole community with access to its facilities. The site will eventually house three schools, providing pupils with high-tech classrooms, and an environment conducive with learning. In addition, a modern sports complex, which will bring together the local district.
Sheffield Insulations have played a significant role in providing solutions to the design and specification challenges experienced on this important project. Laing O'Rourke is the main contractor overseeing the programme.
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