Great Wall Insulated Aluminum Tile
Complete technical data for the Great Wall Aluminum Tile (Great Wall insulated aluminum tile). One note first: here, "Great Wall" refers to the Great Wall corrugated-profile sheet type --i.e., a "Great Wall board" style double-layer aluminum composite insulated tile (insulation core + aluminum facing integrally formed), not a specific brand.
I. Product Composition and Specification Parameters
Item |
Parameter |
Facing material |
3003/3004 series aluminum alloy, thickness 0.35-1.0 mm (commonly 0.4-0.7 mm), PVDF fluorocarbon coating |
Core material |
Polyurethane PU (B2) / PIR (B1) / Rock wool (A1–A2, customizable) |
Core density |
38-45 kg/m³ |
Total thickness |
Sunroom/gazebo light type 4.5-6.5 cm; cold storage/plant type 30, 50, 75, 100, 150, 200 mm |
Effective width |
950 mm (recommended); also available in 800 and 1000 mm |
Overall panel width |
Approx. 1000 mm; corrugation spacing approx. 90 mm |
Length |
Cut to order / custom length |
Surface coating |
PVDF (Kynar grade), full RAL color range, 20-year warranty; SMP optional |
II. Performance Indicators
Performance |
Indicator |
Thermal insulation (thermal conductivity) |
PU 0.022-0.026 W/m·K; PIR≤0.022 W/m·K |
Heat transfer coefficient (U-value) |
75 mm≈0.29, 100 mm≈0.22, 150 mm≈0.15, 200 mm≈0.11 W/m²·K |
Fire rating |
PU = B2; PIR = B1 (charring, no molten drip); Rock wool = A1/A2 (non-combustible) |
Compressive strength |
Approx. 140 kPa |
Weather / corrosion resistance |
Aluminum surface self-healing oxide film resists chloride ions; 30+ years in coastal C4-C5 environments; PVDF coating color retention for 20 years |
Weight |
About 20% lighter than color-coated steel of equal thickness, reducing roof structural load |
Waterproofing / sealing |
Great Wall raised-and-sunken profile + closed-cell polyurethane, good leak resistance |
Insulation temperature difference |
Approx. 6-8 °C difference between indoor and outdoor |
Hygiene / washability |
Food-grade aluminum surface; resistant to chlorine-based disinfectants and high-pressure washing (suitable for cold storage and food plants) |
III. Typical Applications
Sunrooms, gazebos, canopies, villa roofs, warehouses and plants, livestock/poultry housing (75-100 mm), and cold storage (100-200 mm; thickness selected by temperature: 0-5 °C cold storage 100 mm, −18 °C freezer 150 mm, −30 °C blast freezing 200 mm).
Application Fields:
Summary: although they are all Great Wall aluminum tiles, prices vary widely - budget thin bulk lots 20-30 yuan/m², regular double-layer PU full lots about 70-125 yuan/m², export FOB about 30-37 yuan/m² (large MOQ). The differences mainly lie in aluminum sheet thickness (0.3 vs 0.7 mm), core material (PU vs PIR), coating (PVDF vs PE), and whether a fire-rating report is included. For export/engineering orders, be sure to request: core density report, fire-rating report (SGS/Intertek), and PVDF coating warranty certificate.
