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Hartington Conway's new double-skin translucent grp rooflight system is being used on Railtrack's new Ilford depot. The Factory Assembled Rooflight System (fair) is approved by Hoogovens Aluminium Building Systems for use with its kal-zipregistered aluminium standing-seam roofing, and this is the largest project to date to combine the two. Both skins of the fair system weigh 1.83kg per m2 and the outer skin is coated with Hartington Conway's Ultratrade mark to provide long-term protection.

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