Frequently Asked Questions
1. Which size do I need – 105mm, 125mm, or 150mm?
The size depends on the cable cross-section: 105mm for DC cables (~7.5mm), 125mm for PE cables (~16mm), 150mm for larger cross-sections or multiple cables. When in doubt: choose the next larger size.
2. Which cables is the roof duct suitable for?
NEXCAPE® roof ducts are optimized for DC solar cables (1500V), PE/copper cables, signal cables, and standard cable types with outer diameters of approx. 6–18mm.
3. How does the roof duct protect the cable?
The NEXCAPE® roof duct offers reliable protection against cable abrasion. The UV-resistant technical plastic does not swell or crack—even after long UV exposure. For sealing against moisture, we also recommend commercially available roof tape.
4. What is the minimum order quantity?
Minimum order: 20 pieces per item. For bulk quantities of 100 pieces or more, we offer additional discounts and customized solutions.
5. How long does delivery take?
Standard shipping: 2–4 business days after order and payment receipt. Express delivery available upon request.
6. Is there a B2C shop for private individuals?
Yes! Dachdurchführung24.de is our B2B shop. For individual quantities, please visit our B2C shop: nexcape.de
7. What does mechanical cable protection mean?
Our solar cable holder 40x40mm prevents the cable from flapping in the wind, rubbing against sharp edges, or getting damaged.
8. Is the product Made in Germany?
Yes, completely. All NEXCAPE® roof ducts are developed and manufactured in Wildberg, Baden-Württemberg – according to ISO standards.
9. What warranty applies to the roof duct?
Our roof ducts are maintenance-free and durable. The UV-resistant technical plastic retains its properties even under continuous weather exposure.