Built on Montana values, at Protech Steel we are defined by integrity, reliability, and craftsmanship—delivering premium metal roofing, siding, trim accessories and more.

  • Great Falls

    673 Vaughn S. Frontage Rd, Great Falls, MT

  • Billings

    3280 Clearwater Dr. Billings, MT

  • Helena

    6940 N Montana Ave, Helena, MT

  • Call Us!

    1-888-21-STEEL

  • Email

    info@protechsteel.com

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2"
Mechanical
Lock Panel

The 2″ Mechanical Lock panel is a time-tested standing seam system known for its strength, weathertight performance, and proven reliability across commercial, industrial, and architectural applications.

Its mechanically seamed design, concealed fastener system, and superior weathertight performance make it a dependable, high-performance choice for demanding roofing applications.

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2"
Mechanical
Lock Panel

The 2″ Mechanical Lock panel’s precision seaming and watertight design make it a durable, high-performance solution for roofing demanding commercial, industrial, and architectural projects.

The 2″ Mechanical Lock panel is a high-performance steel system designed to deliver reliability in commercial, industrial, and architectural applications.

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2" Mechanical Lock

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Panel Information

2" Mech.
Lock Panel

UL Wind Uplift Rated

Certified to meet UL wind uplift standards for dependable performance in high-wind conditions.

Water infiltration

The 2″ Mechanical Lock panel features a tight mechanically seamed, interlocking design that allows for zero water intrusion, making it a reliable choice for low-slope and high-exposure applications where watertight performance is critical.

TREDNING COLORS

24g Color Options

View more of our color options for the 1.5″ Mechanical Lock and more at our color options page!

Panel Data

2" Mechanical
Lock Panel

The 2″ Mechanical Lock panel is available in multiple gauge and color options, offering flexibility for commercial, industrial, and architectural applications. Designed for low-slope roofs and long panel runs, its 16″ width and strong spanning capability provide reliable performance across demanding projects. With options for fixed or sliding clips to manage structural needs and thermal movement, this system requires a mechanical seamer for installation, delivering a secure, weathertight, and professional finished appearance.

UL - Wind Uplift Rated

A UL wind uplift rating verifies a panel’s ability to resist uplift forces caused by high winds through controlled pressure testing. The 1.5" Mechanical Lock Panel meets UL 580 Class 90, confirming its ability to withstand significant wind loads while maintaining secure attachment and long-term performance.

210A Structural Spanning Capabilities

The Panel 210A "2" Mechanical Lock Panel" is a structural roof system engineered from high-strength 24-gauge steel that achieves a UL 580 Class 90 uplift rating and supports allowable uniform loads exceeding 80 PSF at standard 4-foot spans.

1.5 Mechanical Lock Protech Steel diagram Panel Lap
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mechanical lock clip

Learn more about the 2″ Mechanical Lock’s installation process and trim details by downloading the full installation manual. 

2" Mechanical Lock

GENERAL DATA SHEET

A General Data Sheet is a concise technical overview that highlights a product’s key specifications and performance ratings. For the 2″ Mechanical Lock, it includes panel dimensions, gauge and color options, UL testing data, warranty information, and approved residential and light commercial applications.

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Frequently Asked
Questions

Mechanical Lock panels are ideal for low-slope roofs, long panel runs, and commercial or industrial projects where maximum weathertightness, strength, and long-term performance are required.

Yes—Mechanical Lock panels are available with both a finish warranty and a weathertightness warranty, providing long-term protection for appearance and performance when installed to specifications.

Yes—the Mechanical Lock panel is one of the most reliable systems in metal roofing, known as one of the most tested and proven panel types in the industry, delivering exceptional strength, weathertight performance, and long-term durability on demanding projects.

The Tuff Rib panel is available in 24-ga and 26-ga steel with a full range of standard and premium color options to match both design preferences and performance needs.
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Protech Steel is a Montana-made steel manufacturer, providing top quality metal roofing, siding, and trim for projects across the region. With fast lead times and efficient production, we help keep jobs moving and give contractors the reliable turnaround they need.

© 2025 Protech Steel

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