TPO Waterproof Membrane is composed of TPO surface layer,under-layer, plus reinforced fiber between them. It is featured with good properties of EP rubber like weather-resistance, ozonization resistance and endurance besides good performances of polypropylene like Weldability, chloride-free, plasticizer-free, high reflectivity of sunshine, recovery, safety, energy-saving, environment-friendly; what's more, it has low water -vapour-transmission rate, high heat-resistance, high ageing-resistance, low-temperature resistance, high intensity, stable dimension and color, high tearing strength, high puncture-resistance, excellent physical performance.