Advanced three-layer co-extruded PP-R pipe engineered for premium outdoor hot and cold water applications. The outer layer features a specialized carbon-black UV stabilizer that forms an impenetrable barrier against solar radiation, preventing material degradation and cracking. The middle layer is reinforced with high-density fiberglass compound, which drastically reduces thermal expansion by up to 75% and increases mechanical stiffness to prevent sagging between pipe supports. The inner layer is made of 100% pure, hygienic food-grade polypropylene to ensure smooth water flow, zero pressure drop, and complete resistance to chemical corrosion and scaling.