TPO Roofing for Low-Slope Commercial Roofs

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TPO (Thermoplastic Polyolefin) roofing is a single-ply membrane system commonly used on low-slope commercial roofs. Known for its white reflective surface and heat-welded seams, TPO is a popular option for energy efficiency and long-term performance on commercial buildings 

TPO roofing is a single-ply thermoplastic membrane typically installed in large sheets. The seams are heat-welded using hot air, creating a continuous waterproof barrier across the roof surface.

Because of its reflective properties and seam strength, TPO is widely used on commercial and industrial buildings with low-slope roof designs.

TPO systems can be installed in several ways depending on the building and specifications. A typical assembly includes:

• Roof deck (structural base)
   
• Vapor barrier (when required)
   
• Insulation (mechanically fastened or adhered)
   
• TPO membrane (fully adhered, mechanically fastened, or ballasted)
   
• Heat-welded seams and flashing details
   

The heat-welding process fuses the membrane sheets together, forming durable seams that resist water intrusion.

TPO roofing is widely specified because it balances performance, efficiency, and cost:

• Heat-welded seams: Strong, watertight connections between sheets
   
• Energy efficient: White reflective surface helps reduce heat absorption
   
• Flexible and durable: Handles building movement and temperature changes
   
• Popular for commercial roofs: Common choice for warehouses, offices, and retail buildings

TPO roofing systems can be installed using different attachment methods depending on wind requirements and roof design.

Fully adhered systems bond the membrane directly to the insulation, providing a smooth appearance and reduced membrane movement.

Mechanically fastened systems secure the membrane with fasteners and plates, offering efficient installation and strong performance in many commercial applications.

TPO roofing is a strong option for commercial buildings that need energy efficiency, reliable waterproofing, and a system designed for low-slope conditions. The best solution depends on insulation needs, drainage, and how the building is used.

• Request a Commercial Roof Inspection
   
• Get a TPO Roof Evaluation
   
• Schedule a Roof Condition Report
   

A professional roof inspection helps determine whether TPO is the right system for your building and ensures the installation is designed for long-term performance.