A U-shaped steel back-to-back tripod ballast system is a non-penetrating mounting solution designed for flat roofs or ground-level installations. Its defining feature is the paired triangular frames arranged in opposing orientation—two tripods placed back-to-back—which share a common ballast beam and provide mutual stabilization, allowing for efficient use of ballast materials while supporting a row of solar modules at a fixed tilt angle .

Core Functional Principles

• Non-Penetrating Attachment: The system relies entirely on gravitational ballast to resist wind uplift and overturning forces, eliminating any roof penetrations and preserving the integrity of the waterproofing membrane .

• Back-to-Back Triangular Geometry: Two tripod frames are positioned facing opposite directions, sharing a central ballast beam. This configuration creates a structurally efficient, self-stabilizing system where the weight of one frame helps counterbalance the wind uplift forces on the other .

• U-Channel Ballast Integration: The structural members are formed from U-shaped steel channels, with the open channel serving a dual purpose: providing structural rigidity and containing ballast materials (typically concrete pavers or blocks) .

• Load Distribution: The system distributes the weight of the modules and ballast evenly across the roof surface through wide base plates or pads, preventing concentrated point loads that could damage the roofing membrane .

System Architecture: Back-to-Back Configuration

The defining architectural feature is the paired, opposing tripod arrangement:

• Two Tripod Frames: Each "tripod" consists of three primary members:

• Front Leg (Lower): Shorter support at the front of the array .

• Rear Leg (Higher): Taller support at the rear, creating the tilt angle .

• Base Beam (U-Channel): The horizontal member at the bottom that holds ballast and connects to the opposing tripod .

Parameters

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