PolyX Rafter Bar Intermediate Bar Self Supported - 3mtr - White

The PolyX Rafter Bar (Intermediate) for a Self Support System is designed to securely join and sup...

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Professional Building SuppliesStorm White Polyx Rafter Bar Intermediate Bar Self Supported - 3Mtr
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PVC Cladding UKStorm White Polyx Rafter Bar Intermediate Bar Self Supported - 3Mtr
Free delivery in 1–3 days
£69.72
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Product Information

Full details

The PolyX Rafter Bar (Intermediate) is designed for professional builders and DIY enthusiasts constructing self-supported roofing systems for conservatories, lean-tos, or pergolas. Its primary benefit is the ability to securely join polycarbonate sheets over long spans while maintaining a weather-tight seal, though users should note that this specific intermediate bar requires a pre-existing wall plate and eaves beam configuration to function correctly.

All features

Model Part NumberECO30-W
BrandStorm

Extended Product Information

FAQs

Does this bar come with the base and the cap?

Yes, this is a complete two-part system including the base profile and the snap-down cap.

Can I use this for 10mm polycarbonate?

No, this specific rafter bar is designed for sheets between 16mm and 35mm thick.

Is the end cap included in the pack?

Yes, each bar includes one end cap to ensure a clean, professional finish.

Does this require extra sealant?

The integrated neoprene gasket is designed to provide a weather-tight seal without the need for additional silicone, though local codes may vary.

Can I cut the bar to size?

Yes, the bar can be cut to your desired length using a standard fine-tooth hacksaw or power saw with a non-ferrous blade.

What is the maximum span for this bar?

This rafter bar is capable of supporting spans up to 6 metres, depending on the load requirements of your project.

Troubleshooting

Cap not snapping into place

Check that the polycarbonate sheet is fully seated in the gasket and not protruding past the locking groove.

Water leaking at the joint

Ensure the cap is fully engaged along the entire length of the bar and verify that the gasket is not pinched or folded during installation.

Bar bowing under load

Check that your bar spacing adheres to the span charts for the specific polycarbonate thickness used.

Pros and Cons

Pros

  • Snap-down design allows for fast, secure installation
  • High-quality weather sealing with neoprene gaskets
  • Strong, durable construction suitable for long spans
  • Universal compatibility with multiple sheet thicknesses
  • Clean aesthetic finish with included end caps

Cons

  • Requires professional-grade measuring for exact fits
  • Not intended for unsupported installations without a wall plate and eaves beam
  • Limited to specific thickness ranges (16mm-35mm)

Setup, Compatibility & Care

Before installing, ensure your supporting framework is level. When measuring, account for the thermal expansion of polycarbonate by leaving a small gap at the edges of the sheet. Place the base profile onto the rafter, secure it, and apply the polycarbonate sheet. Once seated, align the snap-down cap and apply even pressure along the length of the bar until it clicks firmly into the base. To clean, use mild soap and water with a non-abrasive cloth; avoid solvent-based cleaners that could damage the finish or the integrity of the neoprene gasket.

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