How to Mount Solar Panels to My Roof Rack May 16, 2025

Latest News, May 16, 2025

If you’re building an off-grid touring rig or a self-sufficient 4WD setup, chances are you’ve considered mounting a solar panel on your roof. With roof space at a premium, especially once a rack is installed, many people ask: How do I mount solar panels to my roof rack?

At Wedgetail, we’ve worked with hundreds of customers to create solar-compatible rack setups for camping, touring and remote work vehicles. Here’s a detailed guide on how to mount your solar panels securely and effectively.

Step 1: Choose the Right Solar Panel

Before mounting anything, you’ll need to choose a panel that suits your vehicle, energy needs and available space. Common options include:

• Rigid Panels: Durable and efficient, best for permanent roof rack setups.
• Flexible Panels: Lightweight and slim, but less efficient and typically less durable.
• Blanket Panels: Foldable and portable – not suitable for permanent mounting but great for temporary use.

We recommend low-profile rigid panels for roof rack installation due to their strength and long-term reliability.

Step 2: Assess Your Roof Rack

Not all roof racks are equal when it comes to mounting solar panels. Look for a rack that:

• Has modular crossbars or open spaces for mounting points, like the Wedgetail Adventure range.
• Is made from durable, non-corrosive materials.
• Has room above or below the platform for panel clearance.

Wedgetail roof racks are ideal thanks to their customisable crossbar system and lightweight aluminium construction.

Step 3: Plan Your Mounting Location

You can mount solar panels:

• Above the rack: For maximum sunlight exposure and efficiency.
• Below the rack: Sleeker look and added panel protection, though with reduced output due to shading.

Mounting above the rack is generally preferred if solar is your primary power source.

Step 4: Secure the Solar Panel

There are a few common ways to attach solar panels to your roof rack:

• U-Bolts or Pipe Clamps

Wrap around the crossbars and bolt through the panel’s frame. Ensure clamps are stainless steel or rust-resistant.

• Custom Brackets

Attach directly to the panel frame and fasten to the rack using pre-drilled holes or slot systems. Our solar panel brackets are compatible with not only Wedgetail roof racks, but other roof rack brands too.

• Slide or Hinge Mounts

Great for portable or adjustable setups. Panels can tilt for better sun angle or slide out when parked.

Whichever method you choose, double-check that your setup is:

• Rattle-free
• Vibration-resistant
• Clear of wiring pinch points

Step 5: Route the Cables Safely

Once your panel is mounted, route the cables from the panel to your battery or solar controller:

• Use UV-resistant cable ties or flexible conduit.
• Avoid sharp edges and moving parts.
• Ensure a watertight entry point into the cabin or canopy.

Tips for Optimising Solar Panel Performance

• Minimise Shade: Even partial shading from a crossbar or roof accessory can reduce output.
• Clean Regularly: Dust, salt and bird droppings can reduce panel efficiency.
• Use Half-Cell Panels: These continue working at reduced capacity even when partially shaded.

Mounting a solar panel to your roof rack is one of the best ways to power your gear off-grid. With the right setup, you can run fridges, lights and devices without draining your battery.

Need help choosing the right rack or mounting system? Get in touch with our team today and we’ll help you create a setup that suits your vehicle and your adventures.