The National Building Standard Design Atlas 25J950, "Building Waterproofing," is an important guide for professionals in the building waterproofing industry. It provides detailed descriptions of waterproofing projects for metal roof panels and polymer membrane metal composite profiled sheet roofs, offering a unified and scientific technical reference for the Chinese building waterproofing industry. In the compilation of this national standard atlas, Canlon not only contributed its waterproofing expertise as a participating unit, but the technical standards for its representative innovative product—the polymer membrane metal composite profiled sheet system—were also included in Chapter 10. Let's take a look at the relevant content.
In 2021, CCTV's "News Broadcast" featured a special report on a benchmark urban renewal project—the Taizhou Old City Renovation Project in Zhejiang Province. The video showcased the Taizhou Jiaojiang Bridge East Project, constructed by Greentown Leju, as a model, demonstrating how the living environment of residents in the old city area has been improved. This project is one of Canlon's representative works in the "urban renewal" journey. Taizhou's old city area suffers from numerous dilapidated and unsafe buildings, prompting residents to yearn for relocation to new homes. Taizhou City Development Group, Greentown Construction Management, and Fangyuan Construction, the general contractor, all possess high-quality resources from front-end planning and design to back-end property management. Supported by robust product and management standards, they have accumulated rich resources covering the entire industry chain.
Against the backdrop of global climate change and increasing resource scarcity, "sustainable development" and "circular economy" have evolved from marginal concepts into core action frameworks across all industries. The construction industry, as a major carbon emitter, faces an urgent need for green transformation. Within this wave of transition, waterproofing materials are undergoing a profound green revolution—shifting from single-function products to full-lifecycle environmental value. Polymer waterproofing membranes represented by TPO and PVC, with their green attributes of recyclability, energy savings, and low VOC emissions, are becoming the technical foundation for low-carbon buildings and green certifications.
Canlon Polymer Industrial Park (Suzhou Canlon Polymer New Materials Technology Co., Ltd.) is wholly invested and constructed by Jiangsu Canlon Building Materials Co., Ltd. (stock code: 300715). With a total investment of 1.5 billion RMB, it has introduced multiple complete sets of European imported production lines and is a world-leading polymer building materials industrial base focusing on waterproofing materials. It provides diversified and customized system solutions for various new and old buildings both domestically and internationally, including single-layer roofing systems, underground engineering, and commercial and industrial roofing. It has received authoritative certifications such as National-level Integration of Informatization and Industrialization Standard Enterprise, National-level 5G Factory, and Jiangsu Province Green Factory.
Under the guidance of the "Dual Carbon" goals, the construction industry is undergoing a profound green transformation. As a critical component of building energy efficiency, roofing systems directly impact the whole-life carbon emissions of buildings. Traditional asphalt-based waterproofing materials, plagued by high production energy consumption, construction pollution, and short service lives, struggle to meet the demands of modern green buildings. Polymer waterproofing materials, represented by TPO and HDPE, are playing an irreplaceable core role in two major application scenarios—photovoltaic roofs and green roofs—by virtue of their exceptional weatherability, environmental friendliness, and functional integration capabilities.
In the decision-making process for building waterproofing materials, a long-standing cognitive misconception persists: equating "initial purchase price" with "final cost." Many owners and construction units habitually compare material prices per square meter while overlooking that building waterproofing is a systematic project spanning decades. When we expand our perspective from "immediate procurement" to "full lifecycle," calculating hidden expenditures such as material lifespan, maintenance costs, and losses from repair-related downtime over 30-50 years, the true economic value of polymer waterproofing materials becomes evident.
Recently, Shanghai Baoye Group Co., Ltd. released the "Announcement of Bidding Results for Annual Procurement of Waterproofing Materials". Canlon was successfully selected as a winning bidder due to its excellent product quality and professional service capabilities. It will once again join hands with Shanghai Baoye to provide high-quality waterproofing system solutions for its key engineering projects.
In waterproofing solutions for roofs, basements, and municipal engineering projects, polymer waterproof membranes are undoubtedly the mainstream choice today, with TPO and PVC being the two core materials. However, many homeowners, renovation professionals, and even newcomers to the industry easily confuse the two – both are polymer membranes, both can be hot-air welded, and both are high-performance roofing materials, but their actual materials, lifespans, and applicable scenarios are quite different! Today, Canlon will use simple, popular science language, avoiding obscure academic formulas, to help you understand the essential differences between the two types of roll materials and provide practical selection advice for different usage scenarios.
On January 16, the No. 1 nuclear island of the Jiangsu Xuwei Nuclear Power Plant in Lianyungang began concrete pouring, marking the start of the main construction phase and initiating my country's transformation of nuclear energy from primarily power generation to diversified supply. The project utilized multiple waterproofing materials from Canlon to construct a robust and reliable waterproofing system. As the first nuclear power unit to commence construction in China at the start of the 15th Five-Year Plan period, the Xuwei project primarily focuses on industrial heating while also generating electricity, with a total investment exceeding 72 billion yuan.