Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should contact Chris Bond on 020 75056816 Corus Building Systems has expanded the options for architects and designers with the addition of TitanSilver to the Kalzip range of foldable aluminium roofing and walling solutions. TitanSilver has all the advantages of Kalzip's falzinc foldable alloy, such as light weight and durability.