UHPC Curtain Wall Waterproofing Solutions for Humid Regions: Qinglong's 28 Years of Moisture-Proofing Experience

The high humidity and rainy weather in humid regions place stringent demands on the waterproofing performance of UHPC curtain walls; improper waterproofing treatment can easily lead to leakage, mildew, and other problems. Qinglong Group, an enterprise deeply engaged in engineering projects in the humid regions of southern China, has drawn on 28 years of UHPC/GRC/GRP project experience to develop a targeted waterproofing solution that safeguards the long-term safety of buildings.

I. Core Waterproofing Challenges of UHPC Curtain Walls in Humid Regions The waterproofing challenges in humid regions are mainly reflected in three aspects: first, persistent high humidity leads to condensation accumulation, which easily penetrates through joints or nodes; second, rainwater scouring and water pressure brought by rainy weather increase the risk of leakage; third, the humid environment accelerates material aging, affecting sealing performance and durability. Through projects in Hainan, Guangxi, and other regions, Qinglong found that joint leakage accounts for more than 70% of waterproofing problems in humid regions, making it the focus of waterproofing treatment.

II. Key Waterproofing Measures for UHPC Curtain Walls in Humid Regions Waterproofing treatment should adopt a strategy of "multiple protection combining drainage and sealing." First is joint sealing protection: polyurethane or silicone sealant with strong weather resistance and excellent adhesion is selected, combined with backing rods and water-stopping strips to form a dual structure of "sealing + drainage." Second is node waterproofing reinforcement: at connection points such as hanging fittings and bolts, waterproof gaskets and sealant provide dual protection to prevent rainwater from penetrating through gaps. Finally is surface protection treatment: a penetrating waterproof coating is applied to the surface of UHPC curtain wall panels to enhance hydrophobicity and reduce rainwater adhesion. In the Hainan Changying Global 100 Fantasy Park project, Qinglong achieved 8 consecutive years without leakage through this combined solution.

III. Engineering Practice and Innovation of Qinglong's Waterproofing Solutions for Humid Regions As an enterprise holding multiple waterproofing-related patents, Qinglong's waterproofing solutions feature targeted innovations. In the Guangxi New Media Center project, for the complex joints of the double-curved UHPC curtain wall, an innovative "custom seal + continuous drainage channel" design was adopted to rapidly drain away rainwater; in the Nanning Liyuan Hotel project, BIM technology was used to simulate rainwater flow paths, optimizing the curtain wall's drainage slopes and drain hole layout to ensure smooth drainage. In addition, Qinglong has established a waterproofing quality assurance system, providing up to 10 years of waterproofing warranty service for projects in humid regions, with regular inspection and maintenance. All waterproofing materials have passed water-aging resistance tests to ensure long-term stability in humid environments.

Waterproofing treatment for UHPC curtain walls in humid regions must address sealing, drainage, and material protection; choosing a scientific solution and a quality supplier is crucial. Leveraging 28 years of engineering experience in the humid regions of southern China, Qinglong Group controls waterproofing quality throughout the entire process from detailed design to construction and maintenance, and has completed UHPC curtain wall projects totaling thousands of square meters in humid environments without leakage. A professional waterproofing solution is the core guarantee for the long-term stable operation of UHPC curtain walls in humid regions.