SAINT-GOBAIN WEBER EXTERNAL WALL INSULATION FOR 21ST CENTURY LLANWERN HIGH SCHOOL
External Wall Insulation (EWI) by Saint-Gobain Weber, the leading UK formulator and manufacturer of innovative, high performance materials for the construction industry, has been used extensively in the construction of the new Llanwern High School, Newport, South Wales.
Almost 2,500 m² of weber.therm XM EWI has been installed by applicator M & P Contractors, Tonypandy, for award-winning main contractor Leadbitter, a subsidiary of Bouygues UK. The £30m project, designed by HLM,
The BBA approved weber.therm XM EWI system for Llanwern High School specified 110mm thick mineral fibre slab which was fixed to the substrate with adhesive and two supplementary fixings per board. The first 3mm application of weber.rend LAC, a polymer-modified, cement-based render, is applied followed by meshcloth reinforcement which is encapsulated in a further 3mm coat of weber.rend LAC to form a 6mm total coat. When dry the surface is primed with weber PR310, a pigmented primer. A decorative finish is achieved with weber.plast TF150 for a fine textured, highly weather resistant surface.
Paul Davies of M & P Contractors was responsible for this extensive project. “We had up to eight staff on the EWI application during any one period and have considerable experience with the weber.therm EWI systems. It has proven once again to be a very straight forward system to work with and the textured finish gives the buildings a striking, modern appearance which we are all very pleased with.”
The lightweight weber.therm XM EWI system, which is Energy Saving Trust recommended, provides excellent thermal insulation, with a very comfortable U-value of 0.28 W/m²K achieved in the construction of the new High School.
Peter Jenkins, head teacher at Llanwern High School said: “The bold colouring is a feature commented on by all our visitors and gives the building a smart, modern appearance. Having just completed our first full year the energy costs are well below even our most optimistic estimate and this clearly shows the quality of the design and the materials used in the construction.”
Saint-Gobain Weber EWI systems are manufactured at facilities in Bedfordshire, Shropshire and
For more information about this project, or for technical support, please contact Saint-Gobain Weber on 08703 330 070, or visit www.netweber.co.uk. Customers in
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