1.0" & 1.5" Mechanical Lock Standing Seam
A Roofing System Built to Last
When long-term durability and weather protection matter most, the Mechanical Seam Panel delivers.
Designed with concealed fasteners and mechanically locked seams, this roofing system provides exceptional resistance against wind, snow, and moisture while maintaining a clean architectural appearance.
General Specifications
12" - 20"
PANEL WIDTHS
1"-1.5"
SEAM HEIGHT
26-22
METAL THICKNESS GAUGE
50-70yr
Material Lifespan
- Custom manufactured on-site for longer panel lengths
- Precision cut to your exact project dimensions
- Class-A Fire Rated when paired with FR Underlayment.
- Class-4 Impact Rated Steel
- 1" Profile available in 13" - 21" widths
- 1.5" Profile available in 12" - 20" widths
- Striations available to mitigate oil-canning
- Concealed fastening helps reduce the risk of leaks caused by exposed fastener failures
- Suitable for installation over solid decking or approved open framing systems
- Double locked seams recommended on pitches below 3/12
- Standing Seam installation tools available at our shop location!
Other Questions? Ask Josh!
Standing Seam Trim
Flashing for Mechanical Lock or Snap Lock roofing projects.
Premium steel colors. Built to last.
Steel Colors
& Finishes
From modern matte tones to timeless earth colors, our premium steel finishes help you achieve the look you want without sacrificing performance.
Manufactured with durable, fade-resistant coatings, our steel panels are designed to withstand Colorado's intense sun, snow, and changing seasons.
Ready to Build with Mechanical Seam Roofing?
Delivery Options
Gunnison Sheet Metal may provide material delivery, roll-off delivery, or on-site roll-forming services as requested by the customer.
-
What is a mechanical seam roof?
A mechanical seam roof uses concealed fasteners with panel seams that are mechanically folded together during installation. This creates an exceptionally durable, weather-resistant roofing system designed for long-term performance.
-
What makes a mechanical seam panel different from snaplock?
Mechanical seam panels require a seaming tool to lock adjacent panels together after installation, creating a stronger connection that's ideal for low-slope roofs and areas with heavy snow or high winds. Snaplock panels simply snap together without mechanical seaming.
-
Can you manufacture custom panel lengths?
Yes. We fabricate panels to the exact lengths required for your project, reducing waste and minimizing field seams.
-
What colors are available?
We offer a wide selection of premium painted steel colors and finishes from trusted manufacturers. Color samples are available upon request.
-
Do you deliver?
Yes. We offer pickup from our Gunnison facility as well as jobsite delivery throughout Western Colorado.