🔑 Features 

• Cost-effective: Less material than full rails.Ideal for cost-sensitive projects with metal roofs.

• Quick installation: Fewer components and faster assembly. 

• Lightweight: Reduces structural load on the roof. Versatile for different PV module types.

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🛠️ Installation Guide: Solar Aluminum U Shape Mini Rail Structure

🔧 Tools You May Need:

• Cordless drill

• Tape measure

• Self-tapping screws

• Llave dinamométrica

• EPDM sealing pad (if not pre-attached)

✅ Primer paso: Mark the Panel Layout

• Measure and mark the positions where each solar panel will be installed.

• Align these positions with the ribs of the metal roof to ensure secure attachment points.

✅ Step 2: Position the U Shape Mini Rails

• Place the U-shaped mini rail across the roof ribs according to your module size and mounting layout.

• Ensure the rail is aligned parallel and level to maintain the correct tilt and spacing.

✅ Step 3: Fix the Rail Using Screws

• Use tornillos autorroscantes (with EPDM sealing washers) to fasten the mini rail directly onto the roof sheet rib.

• Tighten using a torque wrench, but do not overtighten to avoid deforming the roof panel or striping the screw thread.

✅ Step 4: Attach the UI-SS04 Hook Clamp

• Slide the mid/end clamp into the U-groove of the rail.

• Align with the panel’s mounting holes or frame edge.

✅ Step 5: Mount the Solar Panels

• Lift and position the solar panel onto the mounted U rails.

• Secure using mid clamps between panels and end clamps at both ends.

• Tighten all clamps to the recommended torque setting.

✅ Paso 6: Inspección final

• Double-check all clamps and screws for tightness.

• Ensure the panels are straight, evenly spaced, and firmly secured.

• Clean any debris or metal shavings from the roof area.

🔄 Repeat as Needed

• Repeat the above steps across your roof, adjusting for rib spacing (e.g., 2 / 4 / 5 / 8 ribs).

• Modular and flexible for fast deployment in large-scale B2B or residential projects.

📝 Pro Tips:

• Pre-drill holes if working on thicker roof sheets.

• Use anti-corrosion paste for fasteners in highly humid or coastal areas.

• Always follow local building codes and solar PV mounting standards.

Would you like an illustrated diagram o installation video script to go with this guide?

One stop manufacturer specialized in solar mounting system and components for your solar mount projects.

PVMOUNTS has all kinds of solar mounting accessories designed for using on almost every roof and ground with excellent compatibility. Customized order is acceptable.

We can produce different solar panel mounted components including but not limited in:

• Rieles
• Ganchos
• Pies en L
• Tornillos de tierra
• Abrazaderas de costura
• Abrazadera central y final
• Toma de tierra
• Pinza de puesta a tierra
• Pinza de cable
• y más