Insulated Formwork Structures
Insulated concrete formwork (ICF) is a fast, cost effective and thermally efficient method of construction that has a proven track record outside of the UK. The lightweight expanded polystyrene blocks are easily transported to site and require relatively low levels plant, equipment and labour. The easily seamed blocks provide a cavity into which concrete can be poured creating a thermal efficiency exceeding the Building Regulation requirements. Providing U values from 0.30 w/m2k down to 0.11 w/m2k. The system is popular in Germany, USA and Canada as is currently on trial with a number of UK housing associations. The reinforced structural walls may be clad internally and externally with a wide range of finishes including renders, masonry, plaster and rain-screen cladding (timber, light weight metal).
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