Corrugated Roofing Sheets. 10mm & 16mm Thick Polycarbonate Roofing Sheets - Clear, Bronze or Opal. 10mm is our most popular sheet for glazing small lean to roofs canopies and carports. 10mm twinwall polycarbonate is easy to work with lightweight, use in combination with our rafter supported glazing bars to complete your roofing project.
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