Für klassische Trapezblechdächer mit Stahl- oder Aluminiumeindeckung ab 0,5 mm Blechdicke.

Ja, aber nur wenn der Schraubbereich, also die Oberschale, tragfähig ist. Bei Unsicherheit sprechen Sie uns bitte an.

Mindestens 5°, damit keine Wasseransammlungen auf den PV-Modulen entstehen.

Ja. Die Schienenprofile werden direkt auf der Trapezblech-Oberfläche verschraubt (mit Dichtung unterlegt, bzw. an den Schienen bereits verklebt).

Nein. Im Lieferumfang sind bereits EPDM-Dichtstreifen vormontiert oder beiliegend. Unsere Blechschrauben haben ebenfalls eine zusätzliche Gummidichtscheibe.

Ja, sofern geeignete Klemmen mit EPDM-Einlage und definierter Klemmposition verwendet werden.

Akkuschrauber, Drehmomentschlüssel, Innensechskantschlüssel, Maßband.

Nur bei besonders harten Blechen. In der Regel sind Bohrschrauben ausreichend, diese gibt es mir einer selbstschneidenden und gehärteten Bohrspitze.

Ja. Die Trapezschiene wird entweder direkt auf die Hochsicke gesetzt und mit Blechschrauben befestigt oder es werden Trapezbrücken von Obersicke zu Obersicke verlegt, die dann ebenfalls direkt mit dem Blech verschraubt werden.

Ein Komplettangebot für eine Anlage auf einem Trapezblechdach besteht i.d.R. aus allem erforderlichen Komponenten wie Bohrschrauben, EPDM-Dichtungen, dem Schienensystem und Modulklemmen – je nach Systemvariante komplett vorkonfektioniert.

This means that the rail is screwed directly onto two adjacent high beads – for maximum stability.

In such cases, different trapezoidal bridges can be used to enable a straight module progression.

The distance is defined in the instructions (e.g. 180 mm, 207 mm, 250 mm). The rail length and drilling pattern must match this.

Usually stainless steel self-tapping screws 6.0 × 25 mm or 6.3 × 25 mm with EPDM washers.

Usually two per bearing surface (i.e. two per bead) – the exact quantity depends on the length of the trapezoidal rail and the load applied.

This can lead to leaks or instability! Incorrectly positioned screws or their drill holes should be repaired using EPDM plugs, sealant or special repair screws.

Yes, provided there is sufficient contact surface on the bead – always screw in the centre. No module clamps may be mounted on the overlap (cantilever).

The distance between the modules is automatically determined by the centre clamps (usually 2 cm).

With special centre clamps with rubber inserts and adjusted torque – according to module manufacturer approval.

The load must be borne by the trapezoidal profile (upper shell) and not by the soft insulation core.

Maximum 15 m per row – for longer rows, expansion joints or separate rows are recommended.

Yes. The terminal position must be maintained according to the module manufacturer’s specifications, usually at ¼ points on the module frame.

The self-tapping screws create a potential equalisation to the sheet metal, while potential equalisation terminals with claw teeth create a connection between the modules via the clamping.

About potential equalisation with module frames, terminals and rails. Earthing is carried out in accordance with VDE specifications – for detailed information on earthing, please contact your electrician.

Snap-on terminals can be installed more quickly, while terminals for screw connection with screws and slotted nuts are cheaper and easier to remove – both are permitted.

Be sure to use EPDM inserts and work with manufacturer-approved clamps to prevent glass breakage.

A mechanical safety device (e.g. front stops or special holders) to prevent modules from sliding down.

For roofs with a pitch of >10° or as additional protection for the bottom row of modules.

Yes, if there are two module carriers (mounting rails) under each module and the module clamps are used in the correct clamping range.

Vertical or horizontal modules – both are possible and can be installed using the appropriate trapezoidal rails.

Depending on the module format and arrangement, two support rails are required per module – in the case of high wind loads or exposed locations, more may be required – always plan on a project-specific basis.

We offer different rail lengths and systems, from 20 cm pieces to lengths of over 7 metres. Our best-selling Performance Standard (40×40 mm) is available from stock in the following lengths: 1.20 m | 1.90 m | 2.40 m | 3.30 m | 3.60 m | 4.80 m | 6.00 m | 6.60 m.

With centre clamps and end clamps – matching the module frame height (e.g. 30, 35 or 40 mm).

14–16 Nm for Connect Basic clamps with slotted nut or 8–10 Nm for Connect Quick KlickFix clamps. Please follow the assembly instructions.

All screws are fitted with EPDM seals. It is important that the screw is inserted vertically.

Seal the drill hole with EPDM sealant or sheet metal sealing compound – do not leave any open areas.

Yes, all elements can be completely dismantled. The sheet metal screw connections must then be properly sealed.

Yes – depending on the size and use of the building. PV systems are considered external lightning conductors and must be integrated.

Yes, provided that the trapezoidal sheet metal is securely screwed in place and sufficient edge distances are maintained.

Mounting by means of screw connections to the trapezoidal sheet metal is state of the art and offers lasting safety when installed correctly.

Theoretically, it is possible to build right up to the edge. Ideally, there should be a 50 cm gap between the roof edge, corners or parapet to reduce wind suction forces.

Wind load, snow load and dead weight of the modules – to be checked individually depending on the region and structural analysis.

Profiness offers individual planning assistance on request – an automated online tool is in preparation.

Under the modules along the rail, secured with UV-resistant cable ties or clips.

Provide expansion joints at intervals of no more than 15 metres and allow for flexible cable reserves.

Yes, an annual visual inspection is recommended: check clamps, screws, cables and module fastenings and remove any dirt if necessary.

Crooked clamps, missing seals, incorrect screw length, asymmetrical module clamping.

Only mount on dry surfaces – seals only work on clean, dry surfaces.

Please feel free to ask an installer of your choice.

The current instructions are available for download at www.profiness.de.