The OYH GardMem series indoor waterproofing membranes have successfully passed rigorous testing and audits conducted by the International Association of Plumbing and Mechanical Officials (IAPMO), a globally authoritative certification body for plumbing and mechanical systems. In accordance with standards ANSI A118.10 “Load Bearing, Bonded Waterproof Membranes for Thin-Set Ceramic Tile and Dimension Stone Installation”, the GardMem-1000 and GardMem-2000 product lines have completed certification tests for multiple critical performance indicators, including vapor permeability resistance, anti-fungal properties, tensile strength, bonding strength, and waterproof durability. Beyond product performance, our manufacturing processes and quality control systems have also undergone stringent on-site inspections. As a result, the series has proudly earned the highly regarded Uniform Plumbing Code (UPC) and cUPC certifications for the North American bathroom and plumbing market. This achievement signifies that the GardMem series fully complies with North America's stringent regulatory requirements for safety, reliability, and environmental protection, granting it a "passport" to enter international high-end markets.

The Significance of UPC & cUPC Certifications UPC and cUPC certifications are not only benchmarks for quality in bathroom and plumbing products but also represent standardized international safety standards. They are designed to ensure that products used in construction and renovation projects maximize user safety and environmental health. In the fiercely competitive global building materials market, holding UPC and cUPC certifications has become a crucial prerequisite for overcoming technical barriers in North American and global markets, winning customer trust, and serving as a powerful endorsement of a brand's core competitiveness.

Leveraging advanced barrier technology, GardMem products effectively block vapor penetration paths, fundamentally eliminating the risk of mold and mildew growth caused by moisture accumulation. This significantly enhances the hygiene standards and structural durability of bathroom spaces and other high-humidity areas.

GardMem-1000: Flexible & Efficient Waterproofing Solution： As a versatile waterproofing and vapor retardant membrane, GardMem-1000 offers exceptional ease of installation and superior bonding strength. Its surface features precisely printed grid lines, enabling contractors to quickly cut and position the material with accuracy. The product also boasts excellent flexibility and uniform thickness, ensuring seamless adhesion to various substrates such as gypsum boards and cement backer boards, while delivering strong bonding with tiles and stone materials. Ideal for shower enclosures, bathtub surround walls, and intermittent steam rooms, GardMem-1000 provides a robust protective barrier for residential wet areas.

GardMem-2000: Advanced Protection for Extreme Humidity：Engineered specifically for extreme high-humidity environments, GardMem-2000 represents the next evolution in waterproofing performance. While retaining the high bonding strength and easy installation characteristics of the series, it achieves an unprecedented reduction in vapor transmission rate. For demanding applications such as continuously used steam rooms, GardMem-2000 delivers superior vapor barrier performance that exceeds standard products. Its near-perfect sealing performance protects substrates from water damage and mold infestation, making it the preferred choice for high-end projects requiring ultimate protection.

Since its establishment, OYH has been guided by the vision of "To be the most valuable enterprise in the global construction materials industry." We actively benchmark against international top standards, integrating the principles of efficiency, environmental protection, and durability into every stage of product development and manufacturing.

Driven by the achievement of UPC and cUPC certifications, OYH will continue to focus on technological innovation in building waterproofing systems, accelerating the improvement of product performance and the accumulation of key application technologies. Looking to the future, the company is fully committed to expanding its global footprint, continuously enhancing the "innovation content" and "value content" of its products, while providing safer, more durable, and healthier systematic waterproofing solutions to users worldwide.