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.
Recently, Canlon has added another internationally authoritative certification – its TPO/PVC waterproof membrane has successfully passed the product rating accreditation of the Cool Roof Rating Council (CRRC) after three years of outdoor testing, making it one of the few domestic companies to hold certifications for both polymer waterproof materials. This also signifies that Canlon's roofing waterproofing products have reached internationally advanced levels in terms of thermal radiation efficiency and green energy-saving performance, opening new channels for expanding into the global green building market.
In recent years, with the advancement and deployment of carbon peaking and carbon neutrality initiatives, high-performance PVC and TPO polymer waterproof membranes, which offer energy savings and environmental benefits, have experienced rapid growth in China. Due to their superior physical properties, they exhibit exceptionally long-lasting aging resistance when used directly exposed, and have long held the position of "King of Roofing" in the North American market.
Recently, the Jiangsu Provincial Department of Housing and Urban-Rural Development released the second batch of new technologies for key promotion and application in improved housing. Starting from waterproof materials, water supply and drainage, renewable energy, prefabricated decoration, and all-age friendliness, a batch of new technologies and processes were announced to promote the construction of safe, comfortable, green and smart improved housing. The document prioritizes the promotion of waterproofing materials and new technologies for underground and roofing projects, including polymer-modified asphalt waterproofing membranes, synthetic polymer waterproofing membranes, reactive polymer waterproofing coatings, and hot-melt rubberized asphalt waterproofing coatings. Waterproofing materials suitable for interior, roofing, and exterior wall projects can include polymer emulsion waterproofing coatings and cement-based waterproofing materials, and detailed requirements are outlined.