C Purlins
Shape: Looks like the English alphabet “C” when viewed in cross-section.
Applications:
•Ideal for simple roof and wall structures.
•Commonly used in supporting walls, beams, and floor joists.
•Typically used at the ends or corners of a structure.
Advantages:
•Lightweight yet strong.
•Easy to install and transport.
•Good for short to medium span roofing support
Z Purlins
Shape: Shaped like the letter “Z”.
Applications:
•Ideal for long-span roofing.
•Used in intermediate structures where overlapping is required.
•Allows easy lapping or nesting, giving extra strength to joints.
Advantages:
•Stronger than C purlins due to lapping design.
•Excellent for large-span buildings like warehouses and industrial sheds.
•More economical in overlapping sections.
Benefits of Using C/Z Purlins
- High strength-to-weight ratio.
- Corrosion-resistant (zinc-coated).
- Easy fabrication and installation.
- Reduces construction time and cost.
- Precise and uniform shapes.