FDR, Aluminium, Zinc and Copper Roofing in Glasgow FDR is a small privately owned roofings and claddings company that specialises in the use of zinc copper hard metals in its roofing and cladding services. We are specialists in working with the finest metal roof materials including zinc and copper sheeting. We use the latest techniques on new metal roofing projects and on listed buildings to construct stylish yet durable roofs. Our focus is on quality and to be cost effective to our customers. The flexibility of the metal to bend into various shapes makes it ideal for the renewal of facias, soffits and flat roofs, it is maintenance free, has a twenty year guarantee and is available in various colours which will enhance the appearance of your home.