What Is TPO Coated Steel?
TPO Coated Steel is a composite roofing material consisting of a steel substrate and a factory-applied TPO layer. The steel provides rigidity and dimensional stability, while the TPO surface offers waterproofing performance and can be hot-air welded directly to compatible TPO membranes.

Weldable TPO Surface
The TPO surface can be hot-air welded to compatible TPO membranes, helping create continuous waterproofing at critical roof details.
Rigid and Dimensionally Stable
The steel substrate provides rigidity and dimensional stability for fabricated roofing components, helping maintain their shape during installation and service.
Factory-Fabricated for Roofing Details
TPO Coated Steel can be cut, bent and fabricated into different profiles according to project requirements.
Compatible with TPO Roofing Systems
It can be integrated with mechanically attached, fully adhered and prefabricated TPO roofing systems.
TPO Coated Steel Applications

Roof Flashing / Roof Edge
TPO Coated Steel for Roof Flashing & Edges - Provides a durable, dimensionally stable and heat-weldable surface for forming watertight roof flashing and edge details in TPO roofing systems.
Parapet Details
TPO Coated Steel for Parapet Details - Creates secure, heat-weldable waterproof transitions between TPO membranes and parapet walls, ensuring long-term protection at roof-to-wall junctions.


Membrane Termination / Roof Curb
TPO Coated Steel for Membrane Termination - Provides a rigid, heat-weldable base for secure TPO membrane termination, helping create durable and watertight roof edges and transition details.
TPO Coated Steel for Roof Curbs - Forms durable, dimensionally stable curb flashings that can be heat-welded to TPO membranes for reliable waterproofing around rooftop equipment and penetrations.
Custom Roofing Components
TPO Coated Steel for Custom Roofing Components - Custom-fabricated to project-specific dimensions and profiles, providing heat-weldable TPO surfaces for reliable waterproofing across complex roofing details.

From Coated Steel to Finished Roofing Components
We can supply TPO Coated Steel in sheet form or fabricate it into customized roofing components according to drawings and project requirements.
TPO Coated Steel
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Cutting
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Bending / Forming
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Custom Fabrication
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TPO Roofing Component
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Hot-Air Welding with TPO Membrane
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Technical Specifications
| Product | TPO Coated Steel |
| Steel Substrate |
|
| TPO Surface | TPO Membrane |
| Steel Thickness | Customized |
| TPO Thickness | Customized |
| Sheet Width | Customized |
| Sheet Length | Customized |
| Color | White / Customized |
| Fabrication | Cutting, bending and forming |
| Application | TPO roofing details and components |
| Welding | Hot-air weldable TPO surface |
Why Choose Oseaguard for TPO Coated Steel?
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