In the development of the traditional construction industry Pass During the process, improve quality. 、 Cost reduction 、 Efficiency enhancement has always been the industry’s priority. The core objective of continuous pursuit 。 However With the times Evolution , the construction industry is facing growing challenges in environmental protection, quality, cost, and other areas. OHC Construction Group Co., Ltd., as a comprehensive construction enterprise integrating steel structure design, research and development, manufacturing, construction, and maintenance, Enterprise ， The company has consistently prioritized technological innovation to drive industry development. Together with numerous industry experts, it has compiled a reference atlas of architectural standards. 《 Metal Panel Building Construction (I) 》 ( 24CJ113-1 ) , By integrating a series of technological innovations, a new development pathway has been opened up for the traditional construction industry. These innovations have not only enhanced construction quality and reduced project costs but have also improved overall efficiency, providing robust support for the industry’s sustainable development.

I. Traditional Challenges in Building Waterproofing

In recent years, the construction industry has… Quick Development making the building The importance of waterproofing is becoming increasingly evident. 2022 The “General Code for Waterproofing of Building and Municipal Engineering” issued in [year] GB 55030-2022 》It sets higher requirements. ， However, in the course of actual implementation, In this specification, The multi-layer waterproofing method has revealed Numerous Unreasonable aspects.

First, Multilayer waterproofing construction is complex, involving multiple stages and Different The coordinated work of multiple materials has increased construction complexity and management costs. Each waterproofing layer… Laying of materials Quality must be rigorously controlled at every stage; any issue in any link could potentially affect the entire process. Waterproofing Effect. In addition, this approach is conducive to… The technical proficiency of construction personnel is relatively high, And The quality of construction teams varies widely, which can easily lead to inconsistent construction quality. , increasing the risk of leakage 。

Secondly, From a cost perspective, multi-layer waterproofing The cumulative procurement costs of roofing membranes and auxiliary materials directly drive up building waterproofing expenses. Meanwhile, the complexity of construction processes and extended project timelines lead to higher indirect costs—such as labor and equipment‑rental expenses—thereby increasing the financial burden on construction firms and squeezing their profit margins. 。

II. Dongfang Cheng’s Path of Technological Innovation

In General Code for Waterproofing of Building and Municipal Engineering Projects During the implementation process, Problems Caused by Multi-Layer Waterproofing Techniques This has drawn widespread attention across the industry. In response to this challenge, proactive efforts in technological innovation are being undertaken to overcome the bottlenecks of conventional waterproofing systems. OHC Construction Group Co., Ltd., drawing on years of construction experience, has decided to rise to the challenge and embark on technological innovation and research and development.

1 , Directions in Technological Research and Innovation

The technical team at Dongfang Cheng has conducted an in-depth study of relevant standards, including the “Testing Protocol for Air Tightness, Watertightness, and Wind Pressure Resistance of Building Curtain Walls.” GPT/T5227 the "Regulations" and ( Technical Code for Skylights and Metal Roofing (JGJ255-2012) Recognizing that a comprehensive solution to waterproofing challenges requires holistic optimization across materials, structure, and manufacturing processes, the technical team, after extensive research and testing, has focused its efforts on innovating metal roofing systems.

During the R&D process, the team continuously refined the design and manufacturing processes of the metal panels, optimizing multiple parameters—including material, thickness, and geometry—and conducting repeated tests to enhance their waterproof performance. At the same time, advanced surface‑treatment technologies were employed to further improve the panels’… Corrosion-resistant Corrosion resistance and durability. In terms of connection methods, it has broken away from traditional leak-prone joints and innovatively developed… 360 °Laminated standing-seam technology, featuring continuous pre‑glazing and a sealed seam design, ensures the watertight integrity of the joints and completely eliminates the risk of leakage.

This technological breakthrough not only addresses the construction risks inherent in traditional multi‑layer waterproofing systems but also significantly reduces costs. By eliminating one layer of waterproofing membrane, direct material expenses are substantially cut; meanwhile, the streamlined construction process shortens the project timeline, lowering labor and equipment‑rental costs—among other indirect expenses—and boosting overall construction efficiency.

2 Rigorous testing validates exceptional performance.

To ensure the reliability of system performance, Dongfang Cheng conducted rigorous experimental testing on the new metal roofing system. The tests yielded outstanding results in airtightness, watertightness, and wind‑uplift resistance. :1) Airtightness : Achieve the Level 4 standard for the entire unit. ;2) Watertightness : Meet Level 5 standards; water storage test. 6 No leakage whatsoever during the hour. ;3) Wind uplift resistance : After 5000 Following the secondary dynamic pressure test, a waterproofing test was conducted, and no leakage was observed.

The experimental results fully demonstrate that this metal roofing system not only exhibits outstanding sealing and weather resistance but also maintains stable waterproof performance under extreme climatic conditions.

3 , a first in the industry, with dual optimization of cost and efficiency, the single-layer metal roofing system successfully developed by OHC Construction meets GB55030 It meets the requirements for Class I waterproof roofing and is the only system that has successfully passed both dynamic and static wind‑resistance tests while simultaneously satisfying airtightness and watertightness criteria. This technological breakthrough delivers substantial economic benefits and significant construction advantages.

1 ) Reduce the waterproofing layer : Compared with conventional multi-layer waterproofing systems, this system eliminates the need for additional waterproofing membranes, thereby directly reducing material costs.

2) Simplify construction processes : Optimized connection methods and an integrated design shorten the construction schedule while reducing labor and equipment‑rental costs.

3) Improve construction efficiency : Reduce complex construction processes. ; Enhance construction convenience and deliver high‑efficiency waterproofing solutions.

III. Application and Dissemination of Innovative Achievements

Since 2024 Since year, OHC Construction Group Co., Ltd. has developed 360 The laminated standing-seam metal roofing system has been successfully deployed in numerous construction projects across Hebei, Tianjin, Jiangsu, Guangdong, and other regions. With its outstanding waterproofing performance and significant cost advantages, it has earned widespread market recognition.

In a large industrial plant project in Hebei Province, Dongfangcheng’s innovative metal roofing system has stood the test of long-term use, maintaining zero leakage and delivering outstanding air‑tightness and water‑tightness. This has provided robust assurance for the stable operation of on‑site equipment and the smooth continuation of production activities. The successful implementation of this project not only reduced the owner’s subsequent maintenance costs but also helped Dongfangcheng establish a strong reputation in the local market.

In rain‑prone, high‑wind areas such as Jiangsu and Guangdong, a well‑known company’s multi‑story steel‑structure logistics warehouse complex has implemented, on a comprehensive scale, 360 °The laminated, upright-seam metal roofing system has reduced the project’s waterproofing costs by approximately 30% , total amount 800 Ten thousand yuan, and the construction period has been shortened. 20% , the first-time pass rate for project waterproofing inspections has reached 100% , earning high recognition from clients. It has delivered substantial economic benefits to the enterprise and significantly boosted the project’s return on investment.

OHC Construction’s metal roofing systems, with their outstanding performance and significant economic advantages, have secured a more favorable position in the high-end construction market. Their successful implementation has not only bolstered the company’s market competitiveness but also introduced entirely new approaches to waterproofing technology for the industry. An increasing number of construction firms are now paying close attention to and drawing on OHC Construction’s experience, accelerating innovation in the field of waterproofing technologies and providing valuable guidance for enhancing quality, reducing costs, and improving efficiency across the construction sector.

IV. The Value and Application of Standard Architectural Reference Drawings

In the course of Dongfang Cheng’s technological innovation, 24CJ113-1 The Standard Reference Atlas for Building Design has played a pivotal role. Targeting new technologies, innovative products, and integrated systems for which China currently lacks unified national or industry standards to serve as design guidelines, this atlas was developed using standardized methods and is presented as a recommended set of standard design documents. It provides authoritative technical guidance to construction firms and design professionals.

Support and reference basis. Developed by Dongfang Cheng 360 The laminated, standing‑seam metal roofing panel system has been incorporated into this design atlas and has undergone comprehensive evaluation, testing, and technical validation. Authoritative data and detailed technical specifications provide building professionals with ample confidence and a solid basis for adopting this innovative system.

For designers, 24CJ113-1 The atlas not only offers new roofing design options, but also enables designers to base their roof designs on its guidelines when tackling projects with stringent requirements for waterproofing, air tightness, and wind‑load resistance, ensuring that the proposed solutions both comply with relevant codes and meet the project’s specific needs. Moreover, by referencing the atlas during the design process, redundant work can be minimized, thereby enhancing design efficiency.

In the project approval process, the design atlas has also played a crucial role. For example, in certain prefabricated‑building smart manufacturing industrial park projects, the newly issued mandatory engineering construction codes mandated that metal roofing panels must employ a double‑layer waterproofing system, driving up roof‑construction costs and delaying finalization of the project plan. After leveraging the design atlas for roof‑design calculations, the designers ultimately settled on a metal roofing solution that incorporates double‑layer profiled sheets plus… 100 A system-based approach using thick glass wool insulation. While ensuring both waterproofing and thermal insulation, this method successfully reduced costs significantly, thereby accelerating project progress.

V. Technological Innovation and Standardization Support High-Quality Development in the Construction Industry

OHC Construction Group Co., Ltd. has achieved progress through technological innovation and 24CJ113-1 The effective application of standard architectural reference atlases not only creates new opportunities for the enterprises’ own development but also exerts a profound impact on technological advancement and quality improvement within the construction industry.

From a corporate perspective, technological innovation has significantly strengthened Dongfang Cheng’s core competitiveness. Against the backdrop of increasingly fierce market competition, the company leverages its distinctive technological advantages to secure a favorable position in project bidding. The application of innovative technologies has effectively reduced construction costs, improved operational efficiency, and enhanced profitability, laying a solid foundation for sustained growth. Meanwhile, successful implementations of technological innovation have bolstered the company’s brand image, attracting top talent and further driving advancements in R&D and business expansion.

From the perspective of industry development, Dongfangcheng’s innovative practices have set a benchmark for the construction sector, inspiring more companies to embrace technological innovation. In particular, within the waterproofing field, growing attention to materials R&D and construction‑process optimization has driven overall technological advancement. The widespread adoption of cutting‑edge technologies has not only enhanced the quality of building waterproofing but also significantly reduced building‑quality incidents caused by water‑related issues, thereby improving durability and safety and supporting the industry’s sustainable development.

In addition, 24CJ13-1 The widespread adoption and application of the architectural standard reference atlas have provided a crucial platform for sustainable development and the dissemination of new technologies and products. By establishing standardized criteria for the implementation of emerging technologies, the atlas has accelerated their uptake across the industry, facilitated technological upgrading and innovation in the construction sector, and enhanced overall construction quality and management practices.

At a time when the traditional construction industry faces challenges in transformation and upgrading, technological innovation has become a key pathway to enhancing quality, reducing costs, and improving efficiency. OHC Construction Co., Ltd. has achieved new breakthroughs for both itself and the industry through innovative research and development of waterproofing technologies and their standardized application. In the future, more construction companies will actively promote technological innovation, helping the construction sector advance toward higher quality and greater efficiency.