Galvanised Corrugated Sheets

Mild steel sheets that have been strengthened with zinc and shaped into a curving pattern to increase strength and rigidity are known as galvanized corrugated (GC) sheets. They are frequently utilized in residential, commercial, and agricultural projects and are also referred to as corrugated GI sheets because they provide strong, dependable protection with a moderate level of durability against corrosion.

Limitations

• Aesthetic appeal is basic metallic finish; painting may be needed.

• Not ideal for highly coastal or humid areas without additional protection.

• Moderate corrosion resistance—less than pre-painted sheets (PPGI/PPGL).

Installation & Maintenance Tips

• Avoid walking directly on sheets; use scaffolding.

• Store in dry, ventilated areas to avoid pre-installation rust.

• Use self-drilling screws with rubber washers to prevent leakage.

• Inspect periodically for scratches or corrosion and paint if needed.

Advantages

• Durable

Resistant to wear and tear.

• Corrosion Protection

Zinc coating prevents rust.

• Cost-Effective

Economical roofing solution.

• High Strength

Corrugation increases load-bearing capacity.

• Lightweight

Easier to handle and install than concrete or tiles.

• Versatile

Can be used for roofing, walls, fencing, and sheds.