The Right Roof Lead-Through Is Essential
When installing solar systems, ventilation systems, or power lines through the roof, the selection of the correct roof lead-through plays a crucial role. A faulty or unsuitable solution leads to material wear and costly repairs.
Not every roof lead-through is suitable for every tile type. In this guide, you will learn which roof lead-through suits your tile type and how to proceed with installation.
Overview of the Most Important Tile Types
Frankfurter Pfanne (Frankfurt Tile)
The Frankfurter Pfanne is one of the most classic tile types in Germany with a characteristic S-shape. Standard roof lead-throughs with a flexible, UV-resistant collar are suitable for this tile type. The height of the lead-through should be between 105 mm and 125 mm.
Biberschwanz (Beaver Tail)
The Biberschwanz is a flatter, rectangular tile. Beaver tail tiles generally require flatter roof lead-throughs with a maximum cross-section of 105 mm, as they offer less clearance.
Doppelmuldenfalzziegel (DMF) (Double Groove Interlocking Tile)
The Doppelmuldenfalzziegel (DMF) offers better drainage and allows for tighter laying patterns. DMF tiles can accommodate well-dimensioned lead-throughs of 125 mm to 150 mm. For PV roof lead-throughs, the DMF shape is ideal.
Hohlpfanne (Pantiles) and Marseille Tile
The Hohlpfanne has a deep, rounded shape. For these tile types, more robust roof lead-throughs with a height of 125 mm to 150 mm can be used.
Requirements for the Right Roof Lead-Through
- Material: UV-resistant technical plastic (100% TPU) – protects against sunlight and weathering
- Abrasion protection: The material must withstand friction and wear from tile movements
- Ease of installation: The lead-through should be easy to hang into the tiled roof
- Cable protection: Flexible collar with sufficient grip for various cable cross-sections
- Size: The length (105 mm, 125 mm, 150 mm) must match your tile type
NEXCAPE® PV Cable Roof Lead-Through for Professionals
For B2B commercial customers, the NEXCAPE® PV Cable Roof Lead-Through is an excellent option. This solution was specially developed for modern solar cable installations.
- No MC4 removal required: The MC4 connectors remain on the cable – saving time during installation
- UV-resistant: Decades of direct sunlight without embrittlement
- 100% TPU: Adapts to various tile types (Frankfurter Pfanne, DMF, Hohlpfanne)
- Abrasion protection: Protects cables from wear due to tile movements
- Package solutions: Available in quantities of 20, 50, 100, 500 or 1,000 pieces for B2B projects
Installation Instructions for Various Tile Types
Step 1: Identify Tile Type
Before installation, you should accurately identify the existing tile type. Inspect the roof and compare the shape with the types described above.
Step 2: Choose the Correct Lead-Through Size
- 105 mm: For flat tile types such as beaver tail and modern flat tiles
- 125 mm: For standard tile types such as Frankfurter Pfanne and pantiles
- 150 mm: For deep tile types and secure installation with large cable cross-sections
Step 3: Hook into the Tile
The roof lead-through is simply hooked into the tile from above. The upper edge grips into the fold of the tile above it to safely drain water.
Step 4: Insert and Secure Cable
Guide the cable through the flexible collar. The collar elastically adapts to the cable cross-section and provides reliable abrasion protection.
Avoid Common Mistakes
Mistake 1: Wrong size chosen – Precise measurement before purchase is essential. If in doubt, contact us.
Mistake 2: Unsuitable material – Plastics without UV resistance become brittle and break. Invest in high-quality 100% TPU.
Mistake 3: Cable cross-sections too wide – The collar must be able to adapt elastically. Special solutions are available for wide cables.
Contact and Consultation for B2B Commercial Customers
Are you unsure which roof lead-through suits your tile type? Our team is available to provide expert advice.
Email: support@nexcape.de | Phone: 07054 927999 | Available: Mon–Fri 8:00–17:00
For B2B projects with larger quantities, we offer package solutions from 20 to 1,000 pieces.
Discover now on dachdurchfuehrung24.com
From our manufactory: PV Cable Lead-Throughs 105/125/150mm · Frankfurter Pfanne 125mm
Matching product: View PV Cable Lead-Through 150 mm (Universal, almost all tiles)
