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."
On March 27, 2026, the 12th Metal Enclosure Systems Industry Conference was held in Beijing. It brought together nearly 400 representatives from over 110 companies in the national metal enclosure systems industry. Chen Jie, Chairman of the Enclosure System Branch of the China Steel Structure Association, announced the winners of the 2025 "Technological Innovation Award" of the China Steel Structure Association. Among them, the "Polymer Membrane Metal Composite Sandwich Panel" project completed by Canlon won this prestigious award for its industry-leading innovation and practicality.
On March 11, 2026, the Ministry of Industry and Information Technology issued an announcement officially approving the publication of 453 industry standards, including "JC/T 2962-2026 Water Intake Quota for Building Waterproofing Materials" and "JC/T 2963-2026 Water-Saving Enterprises' Waterproofing Materials Industry Standards," providing important technical support for the green, low-carbon, water-saving, and efficient development of the building materials industry. Jiangsu Canlon Building Materials Co., Ltd., as a core participating unit, deeply participated in the drafting of both standards , contributing significantly to the standardization of water use and the systematization of water conservation in the industry with its technical strength and practical experience.
In the realm of single-ply roofing systems, TPO (Thermoplastic Polyolefin) and PVC (Polyvinyl Chloride) stand as two undisputed "titans." Both belong to the thermoplastic membrane family, both utilize hot-air welding technology, and both can form monolithic waterproofing layers. However, these "twins" have fundamental differences in material chemistry, performance characteristics, and application scenarios. Should you choose TPO, known for its cost-effectiveness and environmental friendliness, or PVC, recognized for its robust performance and chemical resistance? This article provides a comprehensive multi-dimensional comparison covering weatherability, environmental friendliness, fire performance, cost, and construction friendliness. Instead of declaring an absolute winner, we aim to help you find the true "champion" for your specific project.
In the field of building waterproofing, the development history of modified bitumen membranes is a history of technological evolution in construction methods, from "fire" to "cold," and from "complex" to "convenient." From the early "fire-baking" operations of traditional hot-melt materials such as SBS and APP, to today's "cold construction" processes of new bitumen-based materials such as self-adhesive and wet-laying, each technological iteration has profoundly responded to the industry's higher pursuit of safety, environmental protection, and construction efficiency. This article will systematically trace this technological evolution and showcase the innovative achievements of industry leader Canlon in this field.
The bathroom is the area in the home with the most frequent water usage and also the most concentrated source of leaks. Statistics show that the leakage rate of newly built residential buildings in China exceeds 20% within three years. However, bathroom leaks are one of the most troublesome problems in home repairs—invisible and intangible, yet capable of causing neighborhood disputes, structural damage, and even safety hazards. The traditional method of "breaking through bricks to find the leak" is not only costly but also prone to misjudging the location. Therefore, accurately and efficiently locating the leak has become a core technology in the field of waterproofing and repair.
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.
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.