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Roofing Material Technology Undergoes Significant Innovation Amid Green Building Trend

2025-07-18

 

 

Against the backdrop of tightening global building energy efficiency policies, rooftops—key carriers for energy conservation and low-carbon transformation—are accelerating the upgrading of material technologies. The latest regional standards mandate that by 2027, the material recycling rate for rooftops in new and renovated buildings must exceed 60%, while simultaneously enhancing thermal insulation and waterproof performance. This is driving the industry’s shift from traditional materials to high-performance solutions.

 

 

 

 

Renovation of historic buildings has emerged as a critical scenario for technology application. In cities with preserved century-old zinc rooftops, new roofing systems resolve the "protection vs. functionality" dilemma through multi-layer composite structures. Flexible base materials fit tightly to the irregular curves of aging rooftops, and their weather resistance extends rooftop lifespan to over 30 years—doubling that of traditional renovation methods.

 

 

 

 

Extreme climates have spurred advancements in material performance. Designed for regions with alternating winter snow and summer heat, the latest generation of roofing underlays boasts 30% improved impact resistance, withstanding direct hits from 5cm-diameter hailstones. Their high reflectivity lowers rooftop surface temperatures by 15-20℃ in summer, indirectly reducing building air-conditioning energy consumption by 12% and becoming a staple for commercial building energy efficiency.

 

 

 

 

The integration of photovoltaics with rooftops is redefining industry norms. Fueled by distributed energy initiatives, more rooftops now host solar power generation, creating demand for "lightweight and compatible" base materials. New underlays reduce the additional load of solar installations by 40%, while their UV resistance ensures long-term compatibility. A commercial park project using this solution generates 6 million kWh annually and cuts overall rooftop maintenance costs by 25%.

 

 

 

 

Material innovation is advancing toward intelligence and circularity. Self-healing coating technology reduces underlay maintenance needs by 60%, while "old underlay recycling" programs achieve a 30% material recovery rate. Waste underlays are converted into new raw materials via chemical depolymerization, transforming roofing materials from "consumables" into "recyclable resources."

 

 

 

 

Despite promising prospects, the industry faces challenges from raw material fluctuations and standardization gaps. Since 2023, volatile base resin prices have increased cost pressures for small and medium enterprises, while regional differences in technical certifications hinder cross-border application of innovative materials. In response, industrial chains are collaborating on joint R&D and standard alignment. Over the next five years, low-carbon, highly adaptable new roofing materials are expected to cover over 80% of new buildings, providing robust support for green construction transformation.

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