Nongfu Spring's Dujiangyan Production Base is a comprehensive production base invested and constructed by Nongfu Spring in Dujiangyan City, Chengdu, Sichuan Province. Located in the Qingcheng Mountain Tourism Equipment Industrial Functional Zone, it covers an area of 446.7 acres and has a total investment of 1.35 billion yuan. The base adopts automated and digital production technologies and integrates industrial tourism functions, mainly producing drinking natural water and aseptic beverages. This project is a core project of the "Tianfu Good Water" industrial cluster in Dujiangyan City. As a high-quality case of Canlon, it was honored to be selected as the Jinyu Award — Gold Award for Metal Enclosure System Engineering in 2025.
Recently, a meeting was successfully held in Suzhou to revise three national standards: "Thermoplastic Polyolefin (TPO) Waterproof Membrane," "Polyvinyl Chloride (PVC) Waterproof Membrane," and "Chlorinated Polyethylene Waterproof Membrane," which are under the jurisdiction of the National Technical Committee on Standardization of Lightweight and Decorative Building Materials (SAC/TC 195) and the Subcommittee on Waterproofing Materials for Buildings (TC195/SC1), and to organize the revision of the industry standard "Waterborne Polymer Modified Bitumen Waterproof Coating."
Recently, the Hainan Provincial Department of Housing and Urban-Rural Development officially released the "Hainan Provincial Technical Standard for Metal Roofing" (DBJ 46-075-2025). This standard, tailored to Hainan's unique geographical characteristics of high temperature, high humidity, high salinity, high radiation, heavy rainfall, and frequent typhoons, establishes comprehensive technical specifications covering the entire process from material selection, design and construction, quality acceptance to maintenance and repair. It will officially take effect on April 1, 2026. As a participating unit in the standard's drafting, Canlon was deeply involved in the standard's development, providing crucial support for its practicality and implementation through its core products such as polymer waterproof membranes and metal composite panels, as well as its engineering experience.
At the 2026 Qidu Town Work Style and Efficiency and Business Environment Optimization Conference held on March 2, the Qidu Town People's Government commended advanced enterprises in economic work in 2025. It hoped that entrepreneurs and units would take advanced models as examples, strive to be role models, work hard, continuously improve their core competitiveness, and create more brilliant and proud new achievements.
In the history of modern construction, persistent leakage, akin to a "water curtain cave," has long plagued the industry and end-users. The limitations of traditional waterproofing materials in terms of durability, environmental friendliness, and construction convenience have struggled to meet the higher demands of contemporary buildings for long-term safety, energy efficiency, and sustainability. Today, polymer waterproofing membranes, represented by PVC (Polyvinyl Chloride), TPO (Thermoplastic Polyolefin), and HDPE (High-Density Polyethylene), are leading a technological revolution with their superior performance, becoming the preferred solution for large public buildings, industrial plants, transportation hubs, and green roofs.
Polymer waterproofing membranes play a critical role in modern construction, with Thermoplastic Polyolefins (TPO) and Polyvinyl Chloride (PVC) being two widely used primary materials. Their long-term performance, particularly weatherability and durability, directly determines the reliability and service life of building envelopes. This article will delve into the impact of environmental factors on the molecular structures of these two materials from a materials science perspective and explore the underlying aging mechanisms and their respective application scenarios.
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.
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.
PMP® Integrated roofing panel, also known as PMP® Integrated polyvinyl chloride membrane metal composite profiled sheet, consists of an exposed polyvinyl chloride (PVC) waterproof roll as the outer layer, which is bonded to a metal sheet through a special processing technology, and then formed into a shaped roofing panel by roller pressing and bending with a roll forming machine. The product combines the simple and quick installation of traditional steel roofing with the weather resistance and corrosion resistance of PVC waterproofing, offering a minimum 25-year warranty and effectively reducing roofing layers and material costs.