Flat roof solar mounting system

Ballast solar panel mounting principle

ValkPro+ uses a carefully engineered ballast solar panel mounting principle. Stability is achieved through a combination of system geometry, wind deflectors and calculated ballast placement - without roof penetration. This approach ensures secure fixation while preserving the roofing membrane. 

Low roof load

Optimized ballast distribution reduces point loads and spreads weight evenly across the roof surface. This makes the system suitable for both complex engineering projects and everyday flat roof installations where roof load and structural limits are critical. 

Wind tunnel testing & standards

All ValkPro+ configurations are wind tunnel tested and calculated according to applicable Eurocode standards. This provides installers and EPCs with predictable performance, including in edge and corner zones or on higher buildings. 

The ValkPro+ is designed for maximum layout flexibility. This flat roof solar mount supports both South-facing and East-West orientations, allowing projects to be optimized for either maximum yield or maximum installed capacity. 

In addition, the system can be installed in both Landscape and Portrait configuration. This flexibility makes ValkPro+ compatible with a wide range of panel dimensions and roof layouts, from compact rooftops to large commercial flat roofs. 

For projects using larger module formats, a dedicated flat roof solar mounting system for large solar panels ValkPro+ Max NextGen is available within the ValkPro+ range. 

Suitable for different roofing membranes

As a roofing membrane PV mounting system, ValkPro+ is compatible with common flat roof membranes such as bitumen, PVC and EPDM. The foundation components are designed to protect the membrane and prevent mechanical damage. 

No roof penetration 

The non-penetrating design eliminates the need for roof drilling. This minimizes leakage risks, simplifies installation and helps preserve existing roof warranties - an important advantage for retrofit and leased buildings. 

Focus on roof safety and service life 

Attention is paid to long-term roof performance. Flexible components absorb movement and vibration, while the system layout supports safe drainage and easy roof inspection during the system’s lifetime. 

For installers who value speed, clarity and predictable installation times, ValkPro+ is also available as a solar panel roof mounting kit. Our kits deliver all required components for mounting panels on a flat roof, packed in one box and ready for immediate use. 

Key benefits of a solar panel roof mounting kit: 

• Time savings with every installation – fewer loose components and faster handling on site 
• Complete system in one box – ready to get started without additional sorting 
• Fast project calculation – quickly configured via the ValkKITSplanner
• Ideal for smaller commercial projects and repetitive installations 

Look at all our solar panel roof mounting kits