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Narayani Corrugated Jasta is a high-performance roofing solution engineered with "Tensile-Strength-Logic" to provide maximum protection against the diverse weather conditions of Nepal. Manufactured using advanced galvanizing technology, these Jasta (CGI) sheets feature a symmetric wave profile that enhances structural rigidity and ensures efficient water runoff. The structural logic of the Narayani Series focuses on precise weight-to-thickness ratios, offering a wide range of gauges from lightweight residential applications to heavy-duty industrial infrastructure. Each sheet is treated with a specialized zinc-alloy coating to prevent oxidative corrosion and maintain surface integrity over decades of exposure. These sheets are impact-resistant and designed for rapid installation, providing a cost-effective and durable building envelope for factories, poultry farms, and residential terraces.
| Thickness (mm) | Approximate Weight (Kg) | Strength Category |
| 0.16 mm | 21 - 23 kg | Light Residential |
| 0.21 mm | 25 - 27 kg | Standard Residential |
| 0.24 / 0.25 mm | 31 - 33 kg | Reinforced Residential |
| 0.26 mm | 34 - 36 kg | Medium Commercial |
| 0.30 mm | 39 - 40 kg | High-Strength Commercial |
| 0.32 mm | 42 - 44 kg | Semi-Industrial |
| 0.35 mm | 46 - 48 kg | Industrial Grade |
| 0.40 mm | 52 - 54 kg | Heavy Industrial |
| 0.46 mm | 61 - 63 kg | Extra Heavy Duty |
| 0.55 mm | 75 - 78 kg | Maximum Structural Load |
Precision Gauge Logic: Available in a comprehensive range of thicknesses from 0.16mm to 0.55mm, allowing for tailored structural selection based on specific load-bearing requirements.
Optimized Weight-to-Strength Ratio: Calibrated to provide consistent bundle weights (ranging from 21kg to 78kg) to ensure high material density and resistance against wind uplift.
Symmetric Corrugation Strength: Engineered with a deep-wave profile that maximizes the sheet's longitudinal stiffness, preventing sagging and ensuring rapid water discharge.
Corrosion-Shield Technology: Each sheet features a high-grade zinc-coating layer that acts as a sacrificial barrier against rust, acid rain, and environmental oxidation.
Versatile Infrastructure Application: Specifically optimized for the Nepalese climate, making it the primary choice for residential terraces, poultry housing, and large-scale industrial warehouses.