This 9kg Concrete Ballast Tile is a compatible alternative ballast tile for use with ValkPro+ flat roof mounting systems, weighting down the mass carriers that anchor a non-penetrating flat-roof PV array in place. Measuring 330 × 300 × 45mm, the tile is placed directly onto the system's mass carriers as part of the overall ballast strategy for the array.
Ballasted flat-roof systems rely on tile weight rather than roof penetration to resist wind uplift, so the exact number and layout of ballast tiles required is project-specific — always confirmed by a full system design and structural report rather than estimated on site.
Non-Penetrating
Fixing Method
ValkPro+
System Compatibility
Compatible Alternative — Not a Genuine Van der Valk Part
This is a compatible alternative ballast tile for use with ValkPro+ flat roof mounting systems, matching the weight and dimensions of the standard tile. It is not a genuine Van der Valk-branded component, but is confirmed suitable for use with the ValkPro+ mass carrier system.
Full System Design Required Before Installation
The exact quantity of ballast tiles required, and how they should be distributed across the array, depends on roof height, wind zone, and array layout. A full ValkPro+ system design and structural report is required to confirm the correct ballast specification before installation.
Key Features
Non-Penetrating Ballast Solution
Weighs down the array's mass carriers to resist wind uplift, avoiding the need to penetrate the roof membrane.
Compatible With ValkPro+ Systems
Sized and weighted to work as a compatible alternative within ValkPro+ flat roof mounting layouts.
Durable Concrete Construction
Manufactured from solid concrete for long-term outdoor durability and consistent, reliable ballast weight.
Suits South-Facing and East-West Layouts
Ballasted flat-roof systems of this type are typically specified for both south-facing and east-west array configurations.
Usable on Green and Sedum Roofs
On sedum or green roof installations, ballast tiles of this type are commonly bedded into the growing medium flush with the sedum surface to help distribute point loads and prevent the mass carriers sinking into the vegetation.
Straightforward Stacking With the 4.5kg Tile
Can be used alongside the matching 4.5kg ballast tile to fine-tune the total ballast weight and improve weight distribution across the array.
Technical Specifications
General
Product Type
Concrete ballast tile
System Compatibility
ValkPro+ flat roof mounting systems
Application
Non-penetrating ballast for mass carriers
Construction
Dimensions
330 × 300 × 45mm
Installation Notes
Placement
Onto system mass carriers
Green/Sedum Roof Use
Bed level with the growing medium; max. 105mm gap to rear wind shield
Quantity Required
Project-specific — confirm via full system design and report
Frequently Asked Questions
Is this a genuine Van der Valk ballast tile?
No. This is a compatible alternative ballast tile matching the weight and dimensions used within ValkPro+ flat roof mounting systems, rather than a genuine Van der Valk branded component.
How many of these tiles do I need for my installation?
The exact quantity and layout is project-specific, depending on roof height, wind zone, and array configuration. A full ValkPro+ system design and structural report is required to confirm the correct specification.
Can this tile be used on a green or sedum roof?
Yes. On sedum or green roof installations, the tile is typically bedded flush with the growing medium to help distribute point loads and stop the mass carriers sinking into the vegetation, with a maximum 105mm gap to the rear wind shield.
Does this tile require roof penetration to fit?
No. It is part of a non-penetrating ballast system, using weight alone to resist wind uplift rather than fixing through the roof membrane.
Can this be used together with the 4.5kg ballast tile?
Yes. The 9kg and 4.5kg tiles are commonly used together to fine-tune total ballast weight and optimise weight distribution across the array.
