News

Solar Installer's Tool Kit: The Optimal Equipment for 2026 A well-equipped tool kit is the foundation of efficient PV installations. But it's not just about packing as much as possible. Smart produ...

Condensation under roof tiles: Underestimated risk for PV cables Condensation regularly forms on the underside of roof tiles. What is usually accounted for in roof construction becomes a problem fo...

PV Accessories Made in Germany: More Than Just a Seal Imported products often dominate the photovoltaic market. However, especially for safety-relevant components like roof penetrations, a closer l...

Ordering roof penetrations: What B2B customers should considerFor installation companies, wholesalers, and roofers, the procurement of roof penetrations is a recurring process. To ensure a smooth o...

Troubleshooting PV Systems: Penetration as a Source of Error When a photovoltaic system does not deliver the expected performance, technicians first look at modules, inverters, or shading. However,...

Thermoplastic Polyurethane: Why TPU Excels on the Roof The choice of material determines the longevity of a roof penetration. While many manufacturers rely on EPDM, lead, or rigid plastics, TPU (Th...

PV Installation on Terraced Houses: Special Requirements Terraced houses present specific challenges for PV installers. Limited roof areas, fire protection requirements for party walls, and confine...

Solar Cable Bending Radius: Why it Matters During Installation Every solar cable has a minimum bending radius. If this is exceeded, insulation damage, increased resistance, and in the worst case, f...

Maintenance-free roof penetrations: What's behind them? Manufacturers like to advertise with the term "maintenance-free". But what does that mean in practice for roof penetrations? We take a close ...