Redland Roofing Systems is to change its name on 10 March to Lafarge Roofing, in recognition of its role as part of the world's largest producer of building materials. Three German cladding companies, Maas Profile, Laukien and Bemo Elementbau have come together to form Bemo Systems, with the intention of strengthening contacts with architects and fabricators internationally. Haironville UK has bought Vulcan to form Vulcan Fabrications, a division offering complex hand-made, metal-formed solutions for architectural feature detailing. H L Smith, owner of Optima partitioning company, has bought Unilock, bringing the two brands together. Lafarge Aggregates has bought Premier Readymix Concrete. Gardiner Security has created an Integrated Systems Division dedicated to integrated systems, structured cabling and networking. Terrapin has granted Corus a five-year renewable licence to produce Porspex volumetric modules. The Steel Protection Consultancy has formed a new division to provide coatings and surface-treatment inspection services. Trendline Office Interiors, formerly part of the Dauphin brand, has launched as a separate operation. Ceiling distributor Nevill Long has taken on exclusive UK distributorship of Lindner metal ceilings. White Light has been appointed a UK dealer for Selecon, a New Zealand-based manufacturer of stage and architectural lighting equipment. Atlanta Kitchen Design has opened in Liverpool. Ash and Lacy Building Products has changed its name to Ash and Lacy Building Systems. Stone Age is opening a new showroom in Fulham, west London. Timber systems has bought Llewellyn Timber Engineering.