What are the main differences between metal stone-coated roofing tiles and ordinary color steel tiles (profiled steel sheets)?

The core differences between metal stone-coated roofing tiles and ordinary color steel tiles (profiled steel sheets) lie in base material structure, appearance and texture, durability, and application scenarios, with specific distinctions as follows:
1. Base Material and Structure
Metal stone-coated roofing tiles use aluminized-zinc steel sheets or other metal materials as the base, with a surface coated with a layer of high-temperature sintered colored stone particles. Ordinary color steel tiles are made by roll-forming cold-rolled steel sheets and then spraying a colored coating on the surface, without any particle covering layer.
2. Appearance and Texture
Metal stone-coated roofing tiles boast rich colors and a granular texture similar to natural stone, offering stronger decorative effects and being able to simulate the shapes of traditional tiles and slates. Ordinary color steel tiles are mostly in a single flat or corrugated shape, with a relatively simple and monotonous appearance.
3. Durability and Protective Performance
The colored stone particle layer of metal stone-coated roofing tiles can effectively resist ultraviolet rays and rain erosion, featuring superior corrosion resistance and anti-aging properties, with a service life usually reaching 30–50 years. The coating of ordinary color steel tiles tends to peel off due to abrasion and prolonged exposure to sunlight, making the tiles prone to rusting after long-term use, with a service life generally ranging from 10–20 years.
4. Application Scenarios
Metal stone-coated roofing tiles are mostly used for roofings of villas, scenic spot buildings, high-end residences and other constructions with high requirements for aesthetics and durability. Ordinary color steel tiles are widely applied to roofings and walls of industrial or temporary buildings such as workshops, warehouses and carports.