S-5!®  B-Clamps for Copper double folded seam

The S-5!® B-clamps, made of Brass, with an opening slot of 6mm are designed for Copper double-folded standing seam paneling.

The S-5! B-Clamps allow material compatible and professional installation on copper roofs without piercing it.

There are 2 options of S-5! B-Clamps:

Fixed on a Copper
double folded standing seam 

The B-Clamp with two set-screws (and centered
M10 thread and M10 stainless steel bolt
) is used for heavy demands including fall protection systems.
(24 pieces per box)


The B-Mini with one set-screw (and M8 thread and M8 stainless steel bolt) are utilized in various instances when multiple clamps are required for the attachment of rigid objects to the seams. (40 pieces per box)

For flange solutions we offer three different stainless steel adapter plates. Download (pdf) Product Info Adapter Plates

The S-5-B and S-5-B Mini clamps are each furnished with the hardware shown above. Each box also includes a screw gun bit tip. All included hardware is stainless steel.

Samples of Applications:

Alpewa-EasyFix B-Klemmen
Pfingst GmbH B-Mini
Schilderbefestigung mit B-Klemme
Perfect and strong fixation of fall protection systems, solar-installations, signs, walkways, snow retention, etc. on copper roofs with S-5! B-Clamps made of Brass.

Install S-5! B-Clamps:

The S-5!® B-clamps, made of Brass, are designed for Copper double-folded standing seam paneling. The material properties of the respective metals, the brass B-clamps and the combination with each other must be checked in advance due to possible contact corrosion.

  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! B-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 B-clamps may hinder the thermally elongation of the profile if, despite the high clamping point of the B-clamps, the foot of a sliding clip extends into the clamping area of the clamp. Than the B-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 for copper applications – also with the S-5! B-Clamps made of brass – in combination with other metals:

Copper is not endangered by other metals due to its position on the positive side of the electrochemical voltage width. Copper can be safely combined with lead and stainless steel. In principle, any combination of copper with lead and stainless steel (material nos. 1.4321, 1.4401, 1.4571) is harmless.
An assembly of copper (also S-5! B-Clamps made of brass) and aluminium is relatively unproblematic if the aluminium has an electrically non-conductive surface due to coating or anodization, so that water containing copper cannot form an electrochemical element with the aluminium. Direct contact between the two metals must be prevented by arranging a joint or an intermediate layer of non-conductive materials (e.g. stainless steel). The copper ions contained in the water cannot then form an electrochemical element with the aluminium.
The arrangement of copper above titanium zinc or galvanized steel should be avoided, as copper ions carried along by draining water can lead to element formation on the titanium zinc or galvanized steel and destroy it. No iron elements should be placed above copper components. In the course of further weathering, these tend to become rusty. Rinse off of this iron oxide can form brown run-off marks on the forming copper protective layer, which are perceived as optical disturbances. However, a danger to the copper material is not to be feared in these cases either.
Further information can be obtained from: Deutsches Kupferinstitut, Düsseldorf, broshure: Dachdeckung und Außenwandbekleidung mit Kupfer, Auflage 2002, Seite 4 – 2.8 Zusammenbau mit anderen Metallen.

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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