Which Engineered Metal Roof Clamp Best Suits Your Application?

S-5! clamps are offered in two sizes to accommodate the holding strength needs of varying utility applications. Our standard (two-setscrew) clamps are designed specifically for heavy-duty applications, such as snow retention, and they provide documented and unsurpassed holding strength. Mini (one-setscrew) clamps save considerable cost for medium or lighter-duty applications, like satellite dish or solar panel mounting.


Why Does S-5! Offer so Many Different Roof Clamps?

Our clamps are specifically designed for your exact standing seam metal roof and roof profile to maximize cost/holding strength ratios. It is important to choose the correct clamp for use on your specific roof type, gauge, and material.

Despite what others may say, a one-size-fits-all clamp compromises either cost or performance.

S-5! roof clamps are carefully designed to preserve both. This is a defining feature of our approach to metal roof attachments: Some of our clamps feature broad diversity, but we'll let you know if there is a more cost-effective solution within our product range for your specific application. Our goal is to ensure you have the best solution at the lowest cost.

Zero Penetration - Maintain Warranties

S-5! invented the technology of utilizing round-point setscrews for a secure mechanical interlock, while protecting the standing seam and any sacrificial coatings, leaving roof warranties intact.

We conducted ASTM-B117 salt-fog testing to prove our clamp attachments cause no premature corrosion to the roof panels.

All clamps are designed to outlast the standing seam metal roof using prudent designs, non-corrosive materials and metallurgy.

Clamps utilize Torx setscrews – These screws are resistant to stripping, easy to drive and remove bit during installation. Driver tips are provided with each box of clamps and bits are widely available internationally.

Some clamps also feature:

  • Insert - allowing easy attachment of clamps along seams
  • Angled setscrews - for ease of installation when tool-to-seam clearance is tight

Rigorous and Accredited Laboratory Testing

Tensile load testing is vital to engineering any application and results vary widely with panel material, thickness, profile, and even brand of manufacture. That’s why we've performed 3,000+ load tests on 500+ different standing seam metal roof profiles, materials and gauges in two load directions:

  • Negative load normal-to-seam testing (pull up)
  • Parallel-to-seam testing (drag load)

No ASTM protocols for testing of metal roof seam clamps existed, so we created one back in 1992 before we offered any product for sale. All of our testing is performed in a third-party, ISO 17025 accredited laboratory.

Ease of Installation

S-5! metal roof clamps were invented by a contractor and metal roof consultant, so they are designed with the installer in mind to reduce the amount of time spent on the roof and to increase field efficiency. All of our systems can be retrofitted to existing roofs or incorporated into new roof design with common tools. The instruction and process is easy enough for a DIY’er to follow.

  • Quick and easy installation
  • Bit tips included in the boxes of clamps
  • Installation utilizes common tools of the roofing and construction trades

Best Sellers

S-5-S Clamp
For popular snap-together profiles-including residential profiles by Taylor Metals and...
Price: $6.30

The S-5-S clamp is an extraordinarily versatile clamp. It was created especially for popular snap-together profiles-including residential profiles by Taylor Metals and Easy Lock Standing Seam.  For horizontal seams under .540 inches, like the Firestone UC4, the S-5-S or S-5-S Mini can be used to avoid having to crimp the seam. Its simple design and ample size make it so strong and versatile it can be used with S-5!™ snow retention products and other heavy-duty applications. The S-5-S...

S-5-U Clamp
Will Fit about 85% of the Standing Seam Profiles Manufactured in North America
Price: $7.87

The S-5-U clamp is by far our most popular and most versatile clamp. It will fit about 85% of the standing seam profiles manufactured in North America — including most structural and architectural profiles. It can be used on vertically oriented seams and by rotating the clamp 90 degrees it can also be used on most horizontal 2” seam profiles. Its simple design, generous dimensioning and multiple hole orientations are what make it so versatile for use with S-5!™ snow retention products and...

S-5-N Clamp
With S-5-N clamps, mounting heavy duty applications to nail strip profiles just got a...
Price: $6.08

The new design features an innovative insert that ensures a superior fit whether placed on older profiles or new and wider nail strip profiles. The redesign of the clamps fits the popular 1″ nail strip metal roof manufacturers which include: Taylor Metals’ Easy Lock™, ASC Building Products’ Skyline Roofing®, McElroy Metals’ Meridian, New Tech Machinery’s FF100 and roofing types with similar profiles. Angled setscrews for easier installation – no special tools requiredFits seam profiles having...

S-5-S Mini Clamp
For popular snap-together profiles-including residential profiles by Taylor Metals and...
Price: $3.95

The S-5-S clamp is an extraordinarily versatile clamp. It was created especially for popular snap-together profiles-including residential profiles by Taylor Metals and Easy Lock Standing Seam.  For horizontal seams under .540 inches, like the Firestone UC4, the S-5-S or S-5-S Mini can be used to avoid having to crimp the seam. The S-5-S Mini is a medium-duty, non-penetrating seam clamp.  (A bit shorter than the S-5-S and having one setscrew rather than two.) The Mini is the choice...