1. Conventional Specifications & Dimensions

FRP purlins are manufactured in different shapes, sizes, and profiles to meet specific structural requirements. The most commonly used specifications include:

Common Profiles & Shapes

• C-Channel Purlins: Used for roofing and wall support.

• Z-Channel Purlins: Ideal for overlapping applications.

• I-Beam & H-Beam Purlins: Used in high-load structural frameworks.

Standard Dimensions

• Custom Profiles: FRP purlins can be customized based on specific project requirements.

• Load Capacity: Designed to meet industry standards for structural strength and impact resistance.

2. Key Advantages of FRP Purlin

FRP purlins provide significant advantages over traditional metal purlins, making them an ideal choice for corrosive and weight-sensitive environments.

✔ Corrosion Resistance

• Unlike steel, FRP does not rust, corrode, or deteriorate when exposed to moisture, chemicals, or harsh weather.

• Perfect for coastal, industrial, and chemical plant applications.

✔ Lightweight & High Strength-to-Weight Ratio

• FRP is up to 70% lighter than steel, reducing transportation and installation costs.

• Maintains high structural strength, making it suitable for load-bearing applications.

✔ Low Maintenance & Long Service Life

• Requires minimal maintenance compared to steel, which needs regular painting or anti-corrosion treatments.

• FRP purlins have a lifespan of 25+ years, significantly reducing replacement costs.

✔ Electrical & Thermal Insulation

• Non-conductive, ensuring safety in electrical installations and power plants.

• Low thermal conductivity, reducing heat transfer in hot or cold environments.

✔ Fire Retardant Options

• Fire-resistant FRP purlins are available with ASTM E84 Class 1 or 2 ratings.

• Suitable for applications requiring fire safety compliance.

✔ Easy Fabrication & Installation

• Can be cut, drilled, and assembled without the need for welding or special tools.

• Reduces labor time and complexity compared to steel purlins.

3. Applications of FRP Purlin

FRP purlins are widely used in industries requiring corrosion resistance, lightweight solutions, and durability.

🔹 Industrial Buildings – Roofing and wall support in factories, warehouses, and workshops.

🔹 Chemical & Petrochemical Plants – Resistant to acids, alkalis, and corrosive gases.

🔹 Marine & Offshore – Used in shipyards, offshore platforms, and ports.

🔹 Cooling Towers – Supports cooling tower structures due to its high moisture resistance.

🔹 Water Treatment Plants – Used in desalination plants, wastewater treatment, and reservoirs.

🔹 Agricultural Buildings – Corrosion-resistant purlins for livestock barns and greenhouses.

4. Comparison: FRP vs. Steel & Aluminum Purlins

Conclusion

FRP Purlins provide an excellent alternative to steel and aluminum, offering superior corrosion resistance, lightweight properties, and durability. These advantages make FRP an ideal choice for industrial, marine, chemical, and public infrastructure applications.