PV Roof Penetration for Interlocking Tiles – Secure Solar Cables Through the Interlocking Tile Roof

Interlocking tiles are standard on German pitched roofs. When laying solar cables, the same weak point arises here as with any tile roof: The cable runs over the hard tile edge and chafes through over time. The PV roof penetration from Dachdurchführung24 protects precisely against this – as reliable abrasion protection directly in the interlocking tile.

Why specifically on interlocking tiles?

Due to the interlocking and nesting structure, the cables often rest on several edges. Without protection, the insulation – exacerbated by wind and temperature changes – chafes through over the years. A clean, guided penetration prevents this.

The Solution: TPU Penetration as Abrasion Protection

  • Abrasion protection at the tile edge – the cable is guided and does not chafe through.
  • Without MC4 disassembly – the cables, including pre-assembled connectors, fit through.
  • TPU material – flexible, UV and weather-resistant, 3D printed in Germany.
  • Sizes 105 / 125 / 150 mm – suitable for 1–4 solar cables plus grounding.

Installation in 3 Steps

1. Prepare the interlocking tile at the penetration point. 2. Insert cables laterally into the guide slots. 3. Insert the penetration with cables into the tile – done. Tool-free, without special tiles.

For Solar Installers & Installation Companies

We supply other specialist companies from stock – on request with staggered pricing and your logo. This way, your installers have the right abrasion protection for every interlocking tile roof directly at hand.

To PV Cable Penetrations

Further Information for Specialist Companies

Frequently Asked Questions

Is the penetration suitable for interlocking tiles?
Yes. Over the lengths 105/125/150 mm, it can be adapted to common interlocking tile profiles and the cable quantity.

How is it installed?
Tool-free in under 2 minutes: Insert cables including MC4 connectors via the lateral guide slots – no drilling, no sawing.

What material is it made of?
Made of UV-resistant TPU in 3D print (Made in Germany); it serves as mechanical abrasion protection for the cables.

Is there a free sample?
Yes, specialist companies receive a free sample package for comparison on the roof.

Further Applications & Selection Aid

Sizes & Variants – which ones do I need? · Tile Roof · Interlocking Tiles · Beaver Tail Tiles · Concrete Roof Tiles · For Solar Installers & Electricians


Are you a specialist company? As a solar, roofing, or electrical company, you can order our PV roof penetrations (abrasion protection made of TPU, Made in Germany) at B2B bulk prices. → Register as a B2B partner & request a bulk order now