The core attributes of galvanized color steel tiles are primarily reflected in their physical and performance characteristics:
• Lightweight yet High-Strength Structure: It is lightweight, approximately 1/30 the weight of traditional brick and tile structures, but possesses high mechanical strength, good bending and compression resistance, allowing it to serve as a load-bearing component in building envelopes.
• Excellent Durability: It offers superior corrosion and rust resistance. The galvanized layer of the substrate provides sacrificial anode protection, preventing the steel sheet from rusting, while the surface coating (e.g., PE) further isolates it from corrosive media.
• Outstanding Weather Resistance: The surface coating can resist UV radiation, making it resistant to fading and chalking even under prolonged sun exposure.
• Fire Performance: With metal as the base material, it is classified as a non-combustible material (Class A), meeting building fire safety requirements.
• Convenient and Efficient Construction: Typically supplied as large panels, they can be quickly installed using specialized brackets and self-tapping screws, significantly reducing construction time.
• Strong Decorative Appeal: Available in a variety of colors (such as dark green, brick red, sea blue, silver white, etc.) and surface textures (glossy, fine texture, stone pattern, wood grain, etc.) to meet diverse aesthetic needs.
2. Material and Structure
Galvanized color steel tiles feature a "sandwich" composite structure, typically consisting of the following layers from top to bottom:
1. Surface Coating:
◦ Material: The most common is polyester paint, known for its cost-effectiveness, rich color options, and good weather resistance. Others include silicon-modified polyester for enhanced corrosion resistance and super-weatherable polyvinylidene fluoride (PVDF).
◦ Function: Provides color, gloss, and additional protection, preventing corrosion and scratching of the substrate.
2. Galvanized Layer:
◦ Material: A hot-dip galvanized layer. This involves coating the steel sheet surface with a thick layer of zinc.
◦ Function: This is the core of rust prevention. Zinc is more chemically active than iron, so it corrodes preferentially, protecting the underlying steel substrate. The thickness of the zinc layer (measured in grams per square meter) directly determines the anti-rust lifespan.
3. Substrate:
◦ Material: High-quality cold-rolled steel sheet.
◦ Function: Provides the overall strength and rigidity of the material.
3. Applications
Galvanized color steel tiles are extremely widely used, primarily in the following three major sectors:
• Industrial Construction:
◦ Factories and Warehouses: The preferred material for roofs and walls of industrial plants and logistics warehouses due to its economy, practicality, and short construction cycle.
◦ Carports and Canopies: Used for shading and rain protection in parking lots, passageways, etc.
• Public and Commercial Buildings:
◦ Stadiums and Arenas: Roofs and grandstand canopies of large venues.
◦ Airports and Stations: Auxiliary buildings at terminals, platforms, etc.
◦ Shopping Malls and Exhibition Centers: Often used in areas not on the main visual facade or for internal structures.
• Civilian and Agricultural Buildings:
◦ Temporary Buildings/Pre-fab Houses: Site temporary buildings, newsstands, etc.
◦ Agricultural Facilities: Livestock barns, greenhouses, agricultural product processing workshops.
Update time：20251128122430
