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Step 5 · Panel

This is the panel

1.5 kg per panel, glass-fibre reinforced polypropylene, battens built in. What the panel is made of, and how it fits together.

  • CAD render of Bu Panel from above
  • CAD render of Bu Panel from another angle
  • CAD render of the underside of Bu Panel

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The panel is made of glass-fibre reinforced polypropylene, about 40 % glass fibre, and weighs 1.5 kg, about 7 kg/m².

The panels lock together with a slide lock, and the batten is part of the panel, so you do not lay battens separately. The patent application has been approved, and the patent will be granted on 28 November 2026.

The panel does not rust, dampens the sound of rain and gives moss a poor hold.

The pictures are CAD renders of the panel as designed for production. Pictures of real panels come in the next steps.

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