Introducing the Kingway Breathable Membrane, a three-layer, highly breathable, and fully waterproof solution engineered for superior building envelope protection. Constructed from high-tensile spun-bonded polypropylene layers surrounding a microporous polypropylene film, it features a durable, UV-resistant polyolefin material. This advanced structure blocks external hot air, cold air, and moisture from penetrating your home, while its unparalleled breathability (1500g/M²/24hrs) allows internal moisture to escape, effectively dissipating condensation and preventing decay. With a 3m hydrostatic head water resistance, it strengthens building airtightness and watertightness.