Bituminous membranes serve as a foundational component in building waterproofing, where quality directly impacts structural safety and longevity. How is a membrane’s true worth measured? Marketing claims alone hold little weight—only rigorous performance comparisons and real-world validation separate excellence from the rest. In the global arena, products must precisely address regional challenges and push technological boundaries to establish a solid presence.

Located in the Indochina Peninsula, Cambodia’s climate is characterized by high humidity, heavy rainfall, and intense sunlight—conditions that demand exceptional heat resistance and durability from waterproofing materials. While the local construction sector has grown rapidly under the Belt and Road Initiative, waterproofing standards remain underdeveloped, leading to widespread leakage issues in new buildings due to inconsistent material quality. This gap has created a pressing need for reliable, high-performance solutions. With decades of overseas experience and a presence in Southeast Asia since 2008, OYH conducted in-depth research into Cambodia’s climate, construction practices, and market needs, paving the way for dedicated R&D on an international-grade, high-heat-resistant modified bituminous membrane.

Engineered from concept to application to meet international premium standards, this targeted solution was the result of nearly six months of intensive development, involving hundreds of tests to successfully balance high heat resistance with superior flexibility. By optimizing the formula with advanced modifiers and specialized fillers, OYH significantly enhanced the membrane’s thermal stability, preventing softening or flow under Cambodia’s extreme heat while maintaining excellent elongation and elasticity to accommodate structural movement without cracking. Compared to conventional local offerings, OYH’s high-heat-resistant membrane not only outperforms in core properties but also delivers easier installation and cost efficiency, aligning perfectly with regional construction requirements and budgets. Since its launch, the product has gained rapid market acceptance.

True quality reveals itself under the most demanding conditions. A major foreign-funded high-end project in Cambodia (Phase I: 6,000 m²) set stringent bidding criteria, requiring all competing membranes to pass multiple rounds of extreme environment simulations, durability tests, and full compliance with international waterproofing acceptance standards. Amid fierce competition from globally recognized brands, OYH’s high-heat-resistant modified bituminous membrane stood out for its consistent, exceptional performance and secured the contract.

This landmark project in Cambodia not only validates OYH’s competitiveness in the global premium segment but also reinforces the company’s technological expertise and brand value worldwide. As more OYH solutions go abroad and contribute to international engineering excellence, the company continues to expand its global footprint. Today, OYH products and services reach over 150 countries and regions, supported by a worldwide network of R&D centers and service teams dedicated to delivering safe, reliable, and sustainable system solutions.

Waterproofing is the lifeline of structures, safeguarding buildings and communities worldwide. Guided by its mission to “create lasting, safe environments for humanity and society,” OYH strives to be a world-class integrated construction materials systems provider. Through its global journey, OYH translates Chinese waterproofing expertise into international service capabilities, contributing professional, high-quality products and solutions to advance building waterproofing across the globe.