IKO are the largest UK manufacturer of waterproofing systems and manufacture a variety of products from bituminous felts, liquid waterproofing systems, Insulation, Mastic Asphalt, Single ply and many more from our 4 UK plants. Our factory in Clay Cross, is the only manufacturing plant for single ply roofing membranes in the UK which also includes PVC, TPE & TPO Membranes We also specialise in carparks, balconies & walkways with 98% of our Components and raw materials sourced within the UK. From planning from our experienced technical team to manufacturing processes, raw materials and distribution, we are committed to sustainability throughout the entire product life-cycle.