What are the different types of commercial roofs? There is no one-size-fits-all in commercial roofing. Considering the options available will help you make the choice in terms of the roofing that will best fit the needs of your building, budget, and maintenance program. This guide describes the characteristics of typical commercial roof types, with brief advantages and disadvantages so that you may compare them at a glance!
The Main Commercial Roof Types
Here are the roofing systems you’ll see most often on commercial buildings:
| Roof type | Short description | Typical pros | Typical cons |
| Built-Up Roofing | Layers of bitumen and reinforcing fabrics finished with gravel or coating. | Durable, good UV protection. | Heavy; needs professional install. |
| EPDM | Large rubber sheets. | Flexible, cost-effective, easy repairs. | Can be punctured; limited color options. |
| Thermoplastic | Single-ply reflective membrane welded at seams. | Energy-efficient, heat-reflective, lightweight. | Newer product, quality varies by manufacturer. |
| PVC | Single-ply PVC membrane resistant to chemicals and fire. | Long-lasting, heat-reflective, durable. | Higher material cost. |
| Metal Roofs | Standing seam or metal panels. | Extremely durable, low maintenance, recyclable. | Higher upfront cost; noise in heavy rain. |
| Green Roofs | Vegetative layers are planted over waterproofing systems. | Stormwater management, insulation, and aesthetics. | Higher initial cost and maintenance needs. |
| Modified Bitumen | Asphalt-based sheets with modifiers for flexibility. | Good for low-slope roofs, easy to patch. | It can age and crack over time. |
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How To Choose the Right One
Think about these four factors:
- Climate:
Reflective membranes work well in hot climates; metal and BUR handle snow/ice differently. - Budget:
EPDM and modified bitumen are budget-friendly; metal and green roofs cost more up front. - Building use:
If your roof sees foot traffic or rooftop equipment, choose a robust membrane or metal. - Maintenance capacity:
Some roofs need more routine checks (green roofs, BUR).
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A Note on Warranties and Installers
Depending on the product and installation of the roof, manufacturer warranties differ. Never attempt any job with a commercial roofer who is inexperienced, and maintain documentation; improper installation is the number one cause of warranty failures.
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Which Is Better: EPDM or TPO?
EPDM or TPO roofing depends upon your building’s needs, climate, and budget. EPDM (Ethylene Propylene Diene Monomer) roofing membrane is known for its long lifespan – often 25-30 years! Due to its flexibility and resistance against cracking, it excels in cold climates while remaining cost-effective and easy to repair; its dark hue may increase cooling costs in warm regions, however.
TPO (Thermoplastic Polyolefin) roofing material provides superior energy efficiency. With its reflective white surface reducing heat absorption and heat-welding seams providing waterproofing and durability, TPO roofs make an excellent addition for hot or sunny regions, although installation costs can be higher.
Overall, EPDM roof membranes tend to perform best for cooler environments and longevity, while TPO tends to offer energy savings and heat resistance in warmer conditions – the choice ultimately rests with your local conditions and budget.
The Bottom Line
So, what are the different types of commercial roofs? Since the ancient BUR and rubber membranes up to the current TPO, PVC, metal, and green roofs, all these types have their trade-offs in pricing, life, and maintenance. Have more questions about a particular system or maintenance secrets? Call RoofFixer! Use our guidance to narrow your choices before taking a bigger step!
