Galvanized Z Purlins for Steel Buildings – Superior Roof Support Systems

High-Strength Z-Shaped Structural Purlins for Optimal Load Distribution

LiYou Steel manufactures precision-engineered galvanized Z purlins that provide exceptional structural performance for modern steel buildings. Our cold-formed Z-section steel offers superior load-bearing capacity and installation efficiency, making it the ideal choice for large-span roofing systems.

Key Advantages of Our Z Purlins

✅ Structural Superiority

• Continuous span capability (up to 12m+)

• Nesting design allows tighter spacing

• 20% stronger than C purlins in bending

• Better load transfer through overlapping

✅ Premium Material Quality
✔ G550 high-strength steel (550MPa yield)
✔ Hot-dip galvanized coating (Z275-Z450)
✔ Precision roll-forming (±0.8mm tolerance)
✔ Custom lengths up to 12 meters

✅ Installation Benefits

• Faster assembly with nesting feature

• Pre-punched holes for quick fastening

• Lighter weight than traditional beams

• Compatible with all roofing systems

Technical Specifications

Optimal Applications

1. Large-Slope Roofing Systems (5°-25° pitch)

• Superior water-shedding performance

• Enhanced wind uplift resistance

• Ideal for standing seam roofs

2. Industrial Warehouse Roofs

• Supports heavy snow loads

• Accommodates long spans

• Compatible with insulation systems

3. Solar Panel Mounting Structures

• Pre-drilled for solar brackets

• UV-resistant coating options

• Anti-corrosion protection

4. Curved Roof Applications

• Flexible installation on radii

• Maintains structural integrity

• Aesthetic clean lines

Manufacturing Excellence

1. Precision Roll-Forming (14-stage process)

2. Computer-Controlled Punching

3. Hot-Dip Galvanizing (450°C zinc bath)

4. Quality Verification (coating thickness tests)

5. Bundled Packaging (weather-resistant)

Why Choose LiYou Z Purlins?

✔ ISO 9001 & CE Certified manufacturing
✔ Custom hole patterns available
✔ Just-in-time global delivery
✔ Technical drawings provided
✔ Competitive factory-direct pricing

Project Example: Vietnam Logistics Hub

• Structure: 100m×60m warehouse

• Purlin Specs:

• Z250×75×2.0mm

• Z350 galvanized coating

• 1.8m spacing

• Performance:

• Supported 1.2kN/m² equipment loads

• Withstood 180km/h typhoon winds

• Zero maintenance in 7 years