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Circular Glass

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  • Modern and stylish circular flat glass rooflight design
  • Elegant aluminium frame powder coated to RAL 7016
  • Highly thermally efficient with thermally isolated frame, and double glazing offering Ur value as low as 1.16 W/m²K
  • Safety of those below and above the rooflight assured thanks to a laminated inner pane and the product having been tested to be non-fragile to CWCT TN-67 for class 1 roofs and Class B non-fragile to ACR[M]001
  • 10 year warranty available
  • Available on prefabricated insulated GRP Kerb 


  • Available in a range of sizes, with 4 standard fixed sizes delivered in 5 days  from order
  • Suitable for mounting direct to a builder’s upstand, or with robust insulated GRP kerb for new build and refurbishment applications
  • Available in a range of sizes from 600mm to 1500mm
  • 4 stocked sizes available on 5 day delivery*
  • Bespoke sizes available to order


    Circular Glass website kerb options
    • Glazed unit only - Simply screw fixes to existing builder’s upstand
    • Insulated GRP Kerb - Provides 150mm roof membrane termination height
    • Glazed with Low-E insulated double glazed glass unit of 31.5mm thickness
    • 6mm toughened outer, 90% Argon filled cavity, 7.5mm laminated soft coat Low E inner with 1.5mm PVB interlayer


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