S-5!®  E-Clamps for double folded seams

The S-5!® E-Clamps, made of Aluminium, with an opening slot of 7mm are specially designed and approved for double folded standing seam roof profiles made of aluminium, titanium-zinc, stainless steel or coated galvanized steel and having the appropriate dimensions.

The special features of the S-5! E-Clamps are the exact fit on the seam and the high pressure point of set screw which will compress the metal without piercing it.

Only use the Original S-5!® E-Clamps:

In contrast to plagiarism and conventional seam clamps, the S-5!® E-clamps have been tested by independent testing institutes on a large number of double standing seams from various manufacturers and are also the only seam clamps approved by the building authorities for the Rheinzink double standing seam system.

Please note following important information from Rheinzink:

“Rheinzink basically only recommends the use of the original S-5!®
E-Clamps, as only these have the official approval in connection with their roofs and thus offer the only possibility that a structural engineer can provide a static proof for the entire system. When using other clamps, the static values that are deposited in the approval for the S-5! clamps, are missing.

“Should the tradesman or planner nevertheless work with other clamps and this causes damage to the roof, then of course the Rheinzink material warranty and the system warranty no longer apply”.

There are 3 options of S-5!® E-Clamps:

Mounting on double-folded seam

The E-Clamp with two set-screws (and two M8 threads on top and one M8 stainless steel bolt) is used for heavy demands e.g. fall protection systems, in the S-5! ColorGard® snow retention and other heavy-duty applications.
E-Clamp is packed with 60 pieces per box.

The E-Mini (with M8 thread on top and M8 stainless steel bolt) and the E-Mini-FL (with Flange and 18x11mm hole) with one set-screw are utilized in various instances when multiple clamps are required for the attachment of rigid objects to the seams, e.g. rail systems for solar installations, the RoofTech tube snow retentions, signs, walkways, satellite dishes, antennas, lightning protection, cable trays, pipe and cable layingmechanical equipment, etc..
E-Mini: 90 pieces per box, E-Mini-FL: 125 pieces per box.

The S-5-E, S-5-E-Mini and S-5-E-Mini-FL clamps are each furnished with the hardware shown above. Each box also includes a bit tip for tightening setscrews using an electric screw gun. A structural aluminum attachment clamp, the S-5-E-clamps are compatible with most common metal roofing materials excluding copper. All included hardware is stainless steel.

Examples of Applications:

ColorGard snow retention with E-Clamps
PV-mounting and snow retention with E-Mini
 Rails mounted on E-Mini-FL
S-5! E-Clamp on double folded seam profile
S-5! E-Mini on a Aluminium double folded seam
S-5! E-Mini-FL under Rail with a underside screw channel.

Install S-5-E-Clamps:

 1. Partially thread the setscrews into the clamp by hand.

 2. Determine how to position the clamp. When attaching to machine-folded seams (regardless of panel profile and geometry), S-5! E-Clamps are designed to engage the seam as shown in illustration on the right.

 3. Tighten the setscrews using a screw gun* and the included screw gun bit tip. Setscrews should be tensioned and re-tensioned as the seam material compresses, i.e. tighten the first setscrew, then the second; then repeat until each setscrew achieves the recommended torque. The setscrews will dimple the seam material but will not penetrate it. When relying on published load values, setscrew tension should be verified periodically using a calibrated torque wrench as indicated below to ensure the tool is consistently achieving the proper torque range.

Once installed correctly, these clamps require no maintenance or reinspection for the life of the roof.

4. The E-clamps may hinder the thermally elongation of the profile if, despite the high clamping point of the E-clamps, the foot of a sliding clip extends into the clamping area of the clamp. Than the E-clamps must be placed at a distance of 25 mm from the sliding clips.

5. For critical attachment applications utilizing an M8-1.25 X 16 mm Hex Flange Bolt, tighten the included M8 bolt to 160 inch pounds (13 foot pounds).

Please note in general:

The suitability for the intended use is checked by the user himself. If technical details are not described separately, this does not release the company carrying out the work from its obligation to check the individual case and clarify the correct technical facts beforehand.

It must be ensured by the planner and the specialist company responsible for the installation that the planning and installation are carried out strictly in accordance with the national and site-specific building regulations, occupational safety and accident prevention regulations, standards and environmental protection regulations. Every person who plans and installs with our products is obliged to inform himself independently about all rules and regulations for technically correct planning and installation and to observe them. This also includes obtaining the current status of the necessary rules and regulations.

S-5!® Warning! Please use the products responsibly! Visit our website of S-5! (www.s-5.com) or contact your S-5! distributor for available load test results. The user and/or installer of these parts is responsible for all necessary engineering and design to ensure the S-5! clamps have been properly spaced and configured.

Notice to S-5! users: Due to the many variables involved with specific panel products, climates, snow melt phenomena, and job particulars, the manufacturer cannot and does not express any opinions as to the suitability of any S-5! assembly for any specific application and assumes no liability with respect thereto. S-5! products are tested for ultimate holding strength on various profile types and materials. Visit www.S-5.com for more details.

The user and/or installer bears also the responsibility not only for the professional installation, but also for the roof on which he is mounted. The user and/or installer must always clarify in advance the application possibilities and application of our products in connection with the other used materials and products at the single project.

Mounting the clamps take care that the set screws and bolts are tightened with the right screw tension as written in each installation instruction (also available under “Information” and on the homepage of S-5!: www.s-5.com). Please make sure that the load coming into the clamp will be taken by the structure of the roof. When planning the project the calculated loads should not only include wind, snow and planned use. The makers and supplier of S-5!® clamps make no representations with respect to these variables. The user and/or installer of these parts is responsible for all necessary engineering and design to ensure that the clamps has been properly spaced and configured. It is the responsibility of the user to verify this information, or seek assistance from a qualified design professional or stress analyst, if necessary.

Assumption is that the determination has been made that the roof to which the S-5! clamps will be attached is structurally adequate. Any loads imposed on the S-5! clamps will be transferred to the panels. Panel seams must have sufficient flexural strength to carry these loads. Panels must also be adequately attached to the building structure, and the structure must be sufficient to carry these loads. The makers and distributor of S-5! clamps make no representations with respect to these variables. It is the responsibility of the user to verify this information, or seek assistance from a qualified design or structural professional, if necessary.

The S-5! clamp is a handy gadget for a great many uses, but will not perform miracles. PLEASE USE THE PRODUCTS RESPONSIBLY!

For critical installations, inquire for specific test data of ultimate tensile load on specific panel materials and seam types. When tabled values are used, screw tensions should be verified and factors of safety should be used as appropriate. The manufacturer expresses no opinions as to the suitability of the S-5! for any specific application or project condition.


The respective installation instructions must always be observed. However, the respective installation instructions do not release the executing company from the obligation to clarify in advance the possible uses and applications of our products, also in connection with the other materials used, on the individual object. RoofTech GmbH and S-5!® – Metal Roof Innovations Ltd. do not assume any responsibility for assembly and applications.

We assume no liability for errors on the website. Pictures and drawings can represent development stages, which are not available in such a way. The contents, photos and graphics may only be used or passed on after consultation with RoofTech GmbH.

The installation instructions and more information to download under “Information”. Load test results, CAD details, metallurgical compatibilities, specifications and additional information are available on the homepage of S-5!: www.s-5.com.

Open in new tab or direkt download (pdf): RoofTech – S-5! General Notes.

The photographs and drawings herein are for the purpose of illustrating installation, tools and techniques, not system designs. S-5! products are protected by international patents of Metal Roof Innovations Ltd. Link to S-5! Therms of Use

No liability for printing errors. Technical changes subject to modification. All rights reserved.
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