Corrugated Roofing Sheet Materials: PPGI, PPGL, GI or GL?

Corrugated roofing sheets are widely used in warehouses, workshops, agricultural buildings, prefab houses, commercial buildings, and residential projects. They are lightweight, easy to install, and suitable for different building structures.

The performance of corrugated roofing sheets depends strongly on the raw material. Common material options include PPGI, PPGL, galvanized steel, and galvalume steel.

PPGI Roofing Sheet

PPGI roofing sheet is made from prepainted galvanized steel coil. It has a color coated surface and a zinc coated steel substrate.

It is widely used because it offers good appearance, practical corrosion resistance, and cost-effective performance. Buyers can choose different RAL colors and surface finishes.

PPGI is suitable for many normal roofing and wall cladding applications.

PPGL Roofing Sheet

PPGL roofing sheet is made from prepainted galvalume steel coil. It has a color coated surface and an aluminum-zinc coated substrate.

PPGL is often selected for roofing applications that need better heat reflectivity and outdoor weather resistance. It is suitable for warehouses, workshops, commercial buildings, and projects in hot or humid areas.

Galvanized Roofing Sheet

Galvanized roofing sheet is made from zinc coated steel. It has a metallic surface and does not have a color paint layer.

It is practical, economical, and widely used in agricultural buildings, temporary structures, industrial buildings, and other applications where a color surface is not necessary.

Galvalume Roofing Sheet

Galvalume roofing sheet is made from aluminum-zinc coated steel. It has good heat reflectivity and corrosion resistance.

It can be used directly for roofing applications where metallic appearance is acceptable.

How to Choose

If the project needs color and decoration, PPGI or PPGL is usually more suitable. If the project needs a simple metallic roofing material, GI or GL can be considered.

For general cost-effective roofing, PPGI is a common choice. For better outdoor performance, PPGL or galvalume may be selected. For economical roofing without color requirement, galvanized sheet is practical.

Buyers should also consider sheet thickness, coating weight, paint type, roof profile, local climate, and expected service life.

FAQ

Which material is best for color roofing sheets?

PPGI and PPGL are the main materials for color roofing sheets.

Is PPGL better for hot areas?

PPGL usually has better heat reflectivity than PPGI because of its galvalume substrate.

Can roofing sheet colors be customized?

Yes. RAL colors and some customized color requirements can be supported.

Request a Quote

Sihoobor supplies corrugated roofing sheets and steel coils for roofing sheet production. Send us your required material, thickness, color, profile, quantity, and destination port for quotation.