How Can Resin Roofing Tiles Offer a 30-Year Warranty?

In the modern construction industry, the choice of roofing materials is crucial to the durability, safety, and functionality of buildings. In recent years, resin tiles have gradually gained market attention as a new type of roofing material, with many brands even promising a "30-year warranty." So, how can resin roofing tiles offer such a long warranty period? What are the material science, production processes, and practical performance behind this claim? This article will explore this question from multiple perspectives.

First, it is important to clarify that resin tiles are not plastic roof tiles in the traditional sense. According to the Chinese industrial standard "JG/T 346-2011," "synthetic resin decorative tiles" (commonly known as resin tiles) have a clear definition and technical requirements, while "plastic tiles" lack unified standards. This difference is not only in name but also, more critically, in material composition and performance indicators.

Section 4, Clause 1 of this standard explicitly requires that the surface layer of resin tiles must be made of ASA (acrylonitrile-styrene-acrylate) material, which is anti-UV, highly weather-resistant, and anti-aging. ASA is a high-performance engineering plastic with exceptional weather resistance and UV resistance, enabling it to maintain color and physical stability over long periods in harsh outdoor environments. However, many low-cost products in the market use cheap ABS (acrylonitrile-butadiene-styrene) or mixed ABS and recycled materials to reduce costs. These materials are far inferior to ASA in terms of weather resistance and anti-aging properties, often leading to fading, embrittlement, and even cracking in a short time, failing to meet industry standards.

The reason resin tiles can offer a 30-year warranty lies in the excellent performance of the materials and strict production processes. In fact, the main material of resin tiles is 99% similar to the material used in household drainage pipes. Drainage pipes must pass rigorous ring stress tests, proving a lifespan of up to 50 years. Similarly, high-quality resin tiles use high-weather-resistant ASA as the surface layer and PVC (polyvinyl chloride) as the base material, formed through multi-layer co-extrusion technology. This structure not only ensures the strength and flexibility of the tiles but also provides excellent corrosion resistance, anti-aging properties, and UV resistance.

For example, SY/Uniko ROOF explicitly promises a 30-year warranty, with an expected service life of up to 40 years. This commitment is not made lightly but is based on extensive experimental data and practical application cases. Accelerated aging tests show that the ASA surface layer's UV resistance can remain undiminished for decades; corrosion resistance tests indicate that the tiles remain stable in acidic and alkaline chemical environments; and physical performance tests demonstrate excellent impact resistance and load-bearing capacity.

The aquaculture industry has extremely demanding environmental requirements, and roofing materials need to possess properties such as corrosion resistance, thermal insulation, and sound absorption. Traditional aquaculture farms often use color steel tiles or asbestos tiles, primarily due to their low budget and easy availability. However, these materials have significant drawbacks: color steel tiles are prone to corrosion and rust, requiring annual repairs; asbestos tiles, when damaged, release asbestos fibers, which are classified as a Group 1 carcinogen by the World Health Organization and pose serious health risks to humans and animals if inhaled.

In contrast, ASA synthetic resin roof tiles, with their high density, corrosion resistance, and easy cleaning, are an ideal choice for the aquaculture industry. Specifically, their advantages include:

Aquaculture environments are humid, with high concentrations of corrosive gases such as ammonia and hydrogen sulfide. Daily disinfection and cleaning often involve acidic or alkaline substances. Synthetic resin roofing sheets can effectively resist the erosion of these chemicals, preventing corrosion and aging.

ASA PVC roof tiles have high reflectivity and low heat absorption, effectively reflecting sunlight and reducing indoor temperatures. In summer, this can keep aquaculture facilities cooler and more ventilated, reducing heat stress in animals.