S-5!® Clamps – The Industry Standard in Metal Roof Solar Mounting

Trusted by Installers Nationwide – Now Available at Circuit Solar

At Circuit Solar, we stock a complete range of S-5!® clamps, the most trusted solar mounting hardware for standing seam metal roofs. These clamps are engineered for high-strength attachment without penetrating the roofing surface, making them the go-to solution for non-invasive, long-lasting solar installations.

Whether you’re installing a residential PV system or a large-scale commercial solar array, S-5! clamps deliver unmatched compatibility, ease of use, and structural integrity—backed by rigorous testing and certifications.

What Are S-5!® Clamps?

S-5!® clamps are non-penetrating mechanical attachment devices designed specifically for standing seam metal roofs. They secure directly to the seam using stainless steel set screws, creating a durable and watertight hold without compromising the roof’s structural or weatherproofing integrity.

Each clamp is precision-machined from aluminum alloy, and includes stainless steel hardware for corrosion resistance and long-term durability in harsh weather conditions.

Why Choose S-5!® Clamps for Solar?

Non-Penetrating Attachment

  • Preserves roof warranties and avoids leaks
  • Perfect for architectural and structural standing seam profiles

Certified Strength & Safety

  • Lab-tested for tensile and shear strength
  • UL 2703 Listed when used with S-5! PV Kit or compatible systems

Universal Fit

  • Multiple clamp models for vertical and horizontal seams
  • Compatible with over 500 seam profiles globally

Quick Installation

  • Simple set screw design with no drilling or adhesives
  • Speeds up install time, reduces labor cost

Durable & Weatherproof

  • Aircraft-grade aluminum and stainless hardware
  • Engineered for long-term performance in snow, wind, and UV exposure

Common S-5!® Clamp Models We Carry

At Circuit Solar, we supply a wide range of S-5! clamps to match virtually every standing seam profile used in Canada. Here are some of the most popular models:

S-5-U Clamp

Universal clamp designed to fit the majority of vertical standing seam profiles. One of the most versatile options available.

S-5-S Clamp

Specialized for structural snap-together seams, including popular brands like Butler® MR-24® and others.

S-5-E Clamp

Engineered specifically for European-style double-folded standing seams. Commonly used on architectural buildings.

S-5-N Clamp

Ideal for nail strip profiles, such as New Tech Machinery’s SS100 and similar seam geometries.

S-5-V Clamp

Optimized for horizontal seams and T-shaped profiles commonly found on commercial metal roofs.

Compatible Applications

S-5!® clamps are ideal for:

  • Solar panel mounting

  • Snow guard systems

  • HVAC equipment

  • Conduit & cable management

  • Signage and rooftop utilities

Their non-invasive design and strength make them particularly well-suited for solar PV systems, where protecting roof integrity is critical.

S-5!® PVKIT® – Clamp + Mount in One

Pair any S-5!® clamp with the S-5! PVKIT® 2.0 for an all-in-one solar mounting solution. This kit allows for rail-less solar racking, reducing material costs and install time. It is UL 2703 certified and provides integrated grounding between the panel frame and roof structure.

Tested, Certified & Code Compliant

  • UL 2703 & UL 467 certified

  • ASTM-tested for load resistance

  • FM Approved for wind uplift

  • ICC-ES Recognized for code compliance

  • Backed by a 25-year manufacturer warranty

All S-5! products undergo rigorous third-party testing, giving engineers, installers, and building owners complete confidence.

Perfect for Canadian Projects

Circuit Solar proudly stocks S-5!® clamps at our Canadian warehouse, with fast shipping nationwide. Our clamps are compatible with standing seam profiles commonly used in Canada, including VicWest, Ideal Roofing, and Agway systems.

Need Help Choosing the Right Clamp?

Not sure which S-5!® clamp fits your metal roof profile?

Our team can help you identify the correct model. Just send us your roof profile or manufacturer specs, and we’ll guide you to the exact solution.

Call us: 1-877-352-5396

📩 Email: sales@circuitsolar.com


Buy Direct from Circuit Solar

  • Stocked in Canada
  • Best pricing on volume orders
  • Expert support for installers and engineers
  • Fast, reliable shipping coast-to-coast

Become a Circuit Solar Partner

Are you an installer, distributor, or contractor?

Partner with Circuit Solar and get access to wholesale pricing, priority stock allocation, and technical support for your projects. Visit our Become a Partner page to apply today.


Order Your S-5!® Clamps Today

Find the right S-5!® clamps for your project in our Solar Mounting Hardware category and place your order with confidence.

Circuit Solar – Canadian-Owned. Installer-Focused. Solar Simplified.

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