FLAGON TPO MEMBRANES A world class, cost effective single layer Thermoplastic Polyolefin (TPO) roofing membrane system. FLAGON TPO-THERM WARM ROOFS A light-weight, thermal roofing system which consists of the Flagon TPO single-layer membrane system applied over a rigid thermal PIR insulation board and vapour barrier. FLAGON TPO GREEN ROOFS A single-layer, adhesive applied, membrane for green roofs, roof gardens, planter boxes and courtyards. It offers a superior, durable and root resistant waterproofing system.