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![High Performance 1.0 U-Value Double Glazing](https://images.findtheneedle.co.uk/findtheneedle/products/17048245.jpg)
All our made to measure bifolding doors are supplied with STAYCOOL double glazed sealed units that not only provide an exceptionally energy efficient 1.0 U-value but also reflect 57% of direct heat from the sun.
For more information on High Performance 1.0 U-Value Double Glazing talk to Folding Doors 2 U
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