| Structural Strength & Alloy | 6063-T5 / T6 Extruded Aluminium (Tensile Yield: 170–240 MPa) | Variable Organic Grain (Tensile: 40–90 MPa depending on species) | Low Structural Capacity (Flexural Strength: 25–45 MPa, requires steel core) |
| Fire Safety Standard | Class A / A1 Non-Combustible (Melting Point >600°C) | Combustible (Requires toxic chemical fire-retardant impregnations) | Combustible (Melts and releases dense toxic fumes under flame) |
| Moisture Absorption & Swelling | 0.00% Zero Absorption (No warping, cracking, or rot) | High Absorption (8–15% volumetric expansion under humidity) | Moderate Absorption (1–3% water uptake, prone to freeze-thaw decay) |
| Surface Coating Technology | 60–80 µm Base Powder + Italian Sublimation Film Transfer | Varnish, Lacquer, or Polyurethane Sealers (Requires re-application) | Integral Pigment / Capped PVC Layer (Prone to chalking & delamination) |
| UV & Weathering Lifespan | 15 to 25 Years (Complies with AAMA 2604 / AAMA 2605 testing) | 1 to 3 Years before noticeable silvering, rot, and grain splitting | 3 to 7 Years under harsh UV irradiance before significant color shift |
| Maintenance & Service Cycle | Zero Repainting (Routine neutral soap water wash every 12 months) | Annual sanding, re-staining, sealing, and pest treatment required | Non-paintable; difficult surface restoration when scratched or faded |
| Weight-to-Strength Ratio | Lightweight structural hollow sections (~2.70 g/cm³) | Heavy dense solid mass (~0.75–1.10 g/cm³, heavy dead load) | Heavy dense profile (~1.20–1.40 g/cm³, limits long-span designs) |