--- Understanding Waterproof Air-tight Tapes ---
• What are Waterproof Air-tight Tapes?:
Waterproof air-tight tapes are specialized sealing materials designed to create a continuous, durable barrier against air and water infiltration in building envelopes. These tapes play a critical role in ultra-low energy consumption buildings by ensuring that joints between doors, windows, pipes, and structural elements remain sealed under extreme weather conditions. At Zhuheng Technology, we engineer our waterproof air-tight tapes with high-performance polymers, advanced adhesive systems, and multi-layer composite structures to meet the strictest international standards. For instance, the Zhuheng Shield DP-in Waterproof Vapor Barrier is made from first-class raw materials and features a multi-layer composite design with super-strong adhesive tape on one side and a high-strength bonding layer on the other. This ensures excellent adhesion to window frames and walls, even in challenging environments like cold winters or humid climates. The product’s 0.65mm thickness and 215g/m² mass per unit area provide superior mechanical strength, while its Sd value of 52.1m guarantees exceptional vapor diffusion resistance. One of the standout features is its compatibility with cement mortar—thanks to the plush fabric base that enhances adhesive absorption—making it ideal for plastering applications. Real-world validation comes from projects like the Shijiazhuang Contemporary Mansion MOMA, where over 150,000 square meters of this tape were used across multiple façades. Builders praised its ease of installation, consistent performance, and long-term durability. Another success story is the Beijing Tongzhou Energy Smart Command Center—the first near-zero energy consumption building in China’s energy sector—which relied on Zhuheng’s DP-in series for sealing all door and window openings. The system not only passed rigorous airtightness testing (with an air permeability rate below 0.6 m³/(m²·h) at 50Pa), but also contributed to a 40% reduction in annual heating demand. These cases demonstrate how waterproof air-tight tapes are no longer optional—they’re foundational to achieving true passive house standards.
--- Benefits of Using Waterproof Air-tight Tapes ---
• Enhanced Energy Efficiency:
The integration of waterproof air-tight tapes directly translates into measurable improvements in building energy efficiency. By eliminating uncontrolled air leakage, these tapes help maintain stable indoor temperatures, reduce HVAC loads, and lower overall energy consumption. According to data from the Ministry of Housing and Urban-Rural Development, buildings using certified airtightness materials can achieve up to 70% less energy use compared to conventional structures. Zhuheng’s DP-in and DP-out series have been proven to deliver such results in real projects. Take the Shanghai Lingang New Area Top Scientists Community—a landmark ultra-low energy consumption residential development with a total area of 180,000 square meters. The project adopted Zhuheng Shield’s full-system solution, including DP-in vapor barriers and DP-out breathable membranes, along with DPad-in and DPad-out tapes. Post-construction blower door tests revealed an airtightness level of just 0.35 m³/(m²·h) at 50Pa, well below the passive house standard of 0.6. This allowed the community to operate efficiently even during extreme winter months without relying heavily on heating systems. Additionally, the tapes’ ability to manage water vapor diffusion prevented condensation within wall cavities, which would otherwise degrade insulation performance and lead to mold growth. In another case, the Zhengzhou Foreign Language School renovation project saw a 35% drop in annual energy costs after retrofitting its façade with Zhuheng’s self-adhesive tapes and special adhesives. Teachers and students reported improved indoor comfort, reduced noise from outside, and fewer instances of dampness in classrooms. Beyond cost savings, these tapes also support national carbon neutrality goals. With over 200 projects completed nationwide and more than 15 million square meters of buildings protected by Zhuheng’s systems, the cumulative CO₂ reduction exceeds 120,000 tons annually. This makes waterproof air-tight tapes not just a technical upgrade—but a strategic investment in sustainable architecture.
--- Customer Favorites: Top Products in the Market ---
• Zhuheng Shield DP-in Waterproof Vapor Barrier:
Among the many options available, the Zhuheng Shield DP-in Waterproof Vapor Barrier consistently ranks as a customer favorite—especially for indoor-side sealing in ultra-low energy consumption buildings. Its popularity stems from a unique combination of performance, reliability, and user-friendly design. Built with a multi-layer composite structure and reinforced with high-tensile strength fibers, the DP-in membrane delivers exceptional durability, with a tensile breaking strength of 726N/50mm longitudinally and 147N/50mm transversely—far exceeding industry benchmarks. What truly sets it apart is its dual functionality: it acts as both a vapor barrier and a waterproof sealant, effectively blocking water vapor diffusion (Sd = 52.1m) while resisting heavy rain and wind pressure. The inclusion of a super-strong adhesive tape on one side ensures secure bonding to window frames, while the other side uses the proprietary DP-HD220 special adhesive for long-term stability on walls. Field tests show that the tape maintains its integrity even after 10 years of exposure to UV radiation, temperature fluctuations, and mechanical stress. Customers particularly appreciate its compatibility with plastering—its plush fabric base integrates seamlessly with cement mortar, allowing for smooth finishes without delamination. A prime example is the Shijiazhuang Lihang Guantang and Tangyue Mansion project, a 110,000-square-meter residential complex in Hebei Province. Here, contractors chose the DP-in series due to its high performance in cold-weather conditions and ease of application. Despite sub-zero temperatures during installation, the tapes adhered perfectly, with zero failures observed during post-construction inspections. Similarly, the Tianjin Wuqing Xinhualian Villa Renovation Project opted for the self-adhesive version (DPad-in), citing faster installation times and cleaner work sites. Feedback from site supervisors highlighted the tape’s zoned release film design, which prevents misapplication and improves precision. With over 200 successful deployments across diverse climate zones—from the humid south to the freezing north—Zhuheng Shield DP-in has earned trust from architects, engineers, and general contractors alike. Its recognition in the 8th Batch of Passive Low-Energy Building Product Selection Catalog and participation in drafting local standards like DB13(J)T8503-2022 further solidify its status as a market-leading solution.
--- Contact Us ---
Want to learn more? Feel free to contact ZHUHENG DUNPAI®、ZHUHENG YIJIA®、Conmsperm™ andy.zhou@zhuhengtech.com.
--- References ---
Zhou, Y. 2023. Understanding the Role of Waterproof Air-tight Tapes in Ultra-low Energy Buildings.
Zhu, H. 2022. High-Performance Sealing Solutions for Passive House Standards: Case Studies from China.
Li, M. 2023. Advanced Composite Tapes in Building Envelope Systems: Durability and Airtightness Performance.
Wang, R. 2021. Innovations in Vapor Barrier Technology for Sustainable Construction Projects.
Chen, L. 2024. Real-world Applications of Self-adhesive Waterproof Tapes in Renovation and New Build Developments.
Sun, T. 2022. Achieving Near-Zero Energy Buildings through Integrated Sealing Systems.
The article comes from：< https://info.conmsperm.com/waterproof-air-tight-tapes-customer-favorites-3761.html >
