The ULAMEX aluminum ballast handle is a versatile flat roof solar mounting component designed for south-facing photovoltaic installations where variable tilt angles are required. Unlike the fixed-angle Z-shaped variant intended for east-west layouts, this flat-profile ballast handle serves as the base element that pairs with PV tilt triangles to achieve any desired inclination between 10 and 35 degrees. Manufactured from EN AW-6060 T6 aluminum, these handles are lightweight, fully corrosion-resistant and engineered for non-penetrating installation on EPDM, TPO, PVC and bituminous roof membranes. Concrete blocks or gravel provide the dead-weight ballast that holds the system in place without a single screw through the roofing surface.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Aluminum EN AW-6060 T6 |
| Profile shape | Flat base (designed for use with PV triangles) |
| Tilt angle | Variable — set by PV triangle (10°–35°) |
| Orientation | South-facing (primary), or any single direction |
| Ballast type | Concrete blocks, gravel fill |
| Compatible membranes | EPDM, TPO, PVC, bituminous |
| Compatible profiles | 40×40 mm, 45×40 mm PV aluminum profiles |
| Module orientation | Portrait and landscape, up to 2,200 mm |
| Roof protection | EPDM pads (placed beneath handles) |
| Standards | Eurocode EN 1991 wind/snow load, EN 1090 |
How It Works — Installation with PV Triangles
The aluminum ballast handle provides the horizontal base of a ballasted flat roof solar system. Place EPDM protective mats on the roof membrane, set the ballast handles at the required spacing, and attach PV tilt triangles to the handles to establish the desired tilt angle. Mount PV aluminum profiles onto the triangles, then secure the solar modules with middle and end clamps. Load the ballast cavities with concrete blocks until the calculated dead weight is reached. The triangles set the tilt — typically 15° to 30° for south-facing installations in Central Europe — while the ballast handles distribute the load evenly across the roof surface and provide the ballast containment. This modular approach allows the same base handle to serve different tilt configurations simply by changing the triangle component.
Compatible Components
The aluminum ballast handle is one element in the ULAMEX non-penetrating flat roof system. Combine it with fixed or adjustable PV triangles for the tilt structure, PV aluminum profiles (40×40 mm, 45×40 mm) for the module rail, middle and end clamps for module fastening, and T-bolts, sliding nuts and fastener kits for all mechanical connections. For east-west dual-orientation layouts, use the Z-shaped ballast handle instead. For heavy-duty applications requiring steel construction, see the galvanized ballast handles.
Application Scenarios
South-facing flat roof installations: The standard configuration for maximum annual energy yield in Central Europe. Pair the aluminum ballast handle with 25°–30° PV triangles for optimal tilt at latitudes 48°–54° N. This setup delivers the highest kWh output per module, though it requires wider row spacing to avoid inter-row shading compared to east-west layouts.
Variable-angle projects: When different sections of a roof require different tilt angles — for instance, to account for partial shading from parapets or adjacent structures — the modular handle-plus-triangle system allows angle adjustments section by section without changing the base component.
Commercial and industrial buildings: Warehouses, logistics centres, office buildings and retail parks with flat roofing membranes. The lightweight aluminum construction minimizes additional roof load, making it suitable for roofs where structural capacity is a concern.
Carport and ground-mount adaptations: While primarily designed for flat roofs, the same ballast handle can anchor ground-level PV arrays using concrete blocks on paved or gravel surfaces — for example in carport installations or temporary solar arrays at construction sites.
Selection Guide — Aluminum vs. Galvanized vs. Z-Handle
ULAMEX offers three ballast handle variants for flat roof PV systems. The aluminum ballast handle is the standard choice for south-facing installations with variable tilt — lightweight, corrosion-free and compatible with all PV triangles. The Z-shaped aluminum handle is purpose-built for east-west layouts at a fixed 15° tilt. The galvanized steel handle offers maximum structural rigidity for high-wind zones or heavy-module configurations. Choose based on your project’s orientation requirement, wind zone classification and roof load constraints.
Standards and Certifications
ULAMEX aluminum ballast handles are manufactured from EN AW-6060 T6 aluminum in accordance with European material standards. The systems are designed for installations calculated under Eurocode EN 1991 (wind and snow loads). ULAMEX holds EN 1090 certification for execution of steel and aluminum structures with full material traceability. Mill test certificates (EN 10204 Type 3.1) are available on request. Site-specific ballast calculations should be validated by a qualified structural engineer accounting for wind zone, building height, terrain category and roof edge distances.
Why Choose ULAMEX
ULAMEX is your single-source B2B supplier for the complete flat roof PV mounting system. We supply aluminum ballast handles alongside PV triangles, profiles, clamps and fasteners — all at wholesale pricing with pallet delivery across Europe. Over thirty-five years of metals trade experience means reliable supply, consistent quality and technical know-how to support your project from design through delivery. Contact us for quotations.
Frequently Asked Questions
What tilt angle does the aluminum ballast handle provide?
The aluminum ballast handle itself is a flat base element — it does not set a tilt angle on its own. The tilt is determined by the PV triangle attached to it. Fixed triangles are available in 15°, 20°, 25°, 30° and 35°, while adjustable triangles cover 15°–30° continuously. This modular approach lets you customize the tilt for each project without changing the base handle.
How does the aluminum handle compare to the galvanized steel version?
The aluminum handle is lighter (easier to transport and less roof load), inherently corrosion-resistant (no coating to degrade over time) and suitable for the majority of standard flat roof installations. The galvanized steel handle is heavier and stiffer, making it preferable for high-wind zones or when maximum structural rigidity is required. Both are compatible with the same PV profiles, triangles and clamps.
Can I use the aluminum ballast handle without PV triangles for a flat (0°) installation?
While technically possible, a completely flat (0°) module installation is not recommended. Even a minimal tilt of 5°–10° is necessary for rainwater runoff and self-cleaning of the panel surface. Flat installations also produce less energy than tilted ones. We recommend pairing ballast handles with at least a 10°–15° PV triangle for practical performance.
Does ULAMEX supply complete flat roof mounting kits?
Yes. ULAMEX can supply a complete flat roof PV mounting package including ballast handles, PV triangles, aluminum profiles, middle and end clamps, and all necessary fasteners. Contact our team with your project details (module type, array layout, roof dimensions) for a tailored quotation.