If you've decided on a metal roof, the next choice is which kind. Two of the most common options couldn't be more different: standing seam, the sleek concealed-fastener system you see on modern homes, and corrugated, the ribbed exposed-fastener panel you see on barns, shops, and budget builds. Both are real metal roofs that outlast asphalt shingles — but they differ a lot in cost, lifespan, looks, and how they're installed. Here's how to choose.
Standing seam vs. corrugated at a glance
| Standing seam | Corrugated (exposed-fastener) | |
|---|---|---|
| Fasteners | Concealed (hidden under seams) | Exposed screws through the panel face |
| Installed cost per sq ft | $10 – $18+ | $4 – $9 |
| Typical lifespan | 50+ years | 25 – 40 years |
| Look | Clean, modern, vertical lines | Rustic, industrial, visible ribs |
| Leak risk | Lowest — no holes in the flat of the roof | Higher — hundreds of fastener penetrations |
| Maintenance | Very low | Periodic screw/gasket checks |
| Best for | Homes, premium look, long-term value | Barns, shops, agricultural, tight budgets |
What is standing seam metal roofing?
Standing seam is a premium roofing system made of interlocking vertical panels joined by raised seams. Crucially, the fasteners are beneath the panels rather than driven through the face — so there are no exposed screw holes in the open areas of the roof, which are the most common place metal roofs eventually leak. The result is a clean, contemporary look and a roof that routinely lasts 50+ years with very little maintenance. Learn more on our standing seam page.
What is corrugated metal roofing?
Corrugated metal roofing is an exposed-fastener system: wavy or ribbed panels screwed directly through the face into the roof deck, with rubber-gasketed screws sealing each penetration. It's the most affordable way to get a real metal roof, which is why it's the go-to for barns, outbuildings, workshops, agricultural buildings, and value-focused homes. It's a type of screw-down panel roof. The trade-off: those exposed fasteners and gaskets wear over time and need periodic attention.
Pros and cons
Standing seam — pros
- Longest lifespan (50+ years) and lowest lifetime maintenance
- No exposed fasteners means the lowest leak risk
- Sleek, modern look that boosts curb appeal and home value
- Excellent wind resistance and compatible with solar mounting
Standing seam — cons
- Higher up-front cost
- Requires specialized fabrication and an experienced installer
Corrugated — pros
- Lowest up-front cost of any real metal roof
- Fast, straightforward installation
- Durable and rugged — great for barns, shops, and outbuildings
- Rustic, traditional look some homeowners love
Corrugated — cons
- Exposed screws and gaskets need re-tightening/replacement over the decades
- More potential leak points than standing seam
- Shorter lifespan than standing seam
- Less of a high-end appearance for a primary residence
Cost comparison
Corrugated is the clear winner on up-front price — roughly $4–$9 per square foot installed versus $10–$18+ for standing seam. But "cheaper" and "better value" aren't always the same thing. Spread across a 50-year standing seam lifespan versus 25–40 years for corrugated (plus the fastener maintenance along the way), the gap narrows. For a full breakdown, see our guide to metal roof cost per square foot in Tennessee.
Which should you choose?
Choose standing seam if it's your primary home, you want the cleanest modern look, you're staying long-term, and you want the lowest maintenance and leak risk. Choose corrugated if you're roofing a barn, shop, garage, or rental, you want a rugged look, or up-front budget is the deciding factor. Many Middle Tennessee property owners use both — standing seam on the house, corrugated on the outbuildings.
If you're weighing standing seam against the other concealed-vs-exposed options, our standing seam vs. screw-down panels comparison goes deeper. And to see how either looks on a real home, try our free roof color visualizer.
Get expert help choosing
Still not sure? We'll walk your roof, talk through your goals and budget, and give you an honest recommendation with an upfront estimate — no pressure.