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COXDOME Circular Rooflight – Fixed Skylight for Flat Roof


Coxdome Circular Fixed Polycarbonate Flat Roof skylights are manufactured to a high standard with double or triple glazing and a GRP Upstand. The upstand manufactured from GRP makes the roof light thermally efficient and ensures a resistance to the formation of condensation.

Coxdome circular skylight dome rooflights are leading the way in terms of quality and price. These flat roof skylights are available in clear layers with a wide range of sizes. Triple Layer U-value: 1.8 W/m²K. Contact us for Ventilation options

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SKU: COX.CIRC Category: Tags: , ,


Coxdome Trade Range Circular Rooflight feature a universal design which provides easy installation as well as high performance. Designed with a modular structure allowing a variety of configurations, Manufactured with a double layer GRP (Glass Reinforced Plastic) upstand with polyurethane insulation providing fantastic efficiency with a U-value of 0.9 W/m²K. For effective heat insulation the triple glazed circular fixed roof lights have a U-value of 1.8 W/m²K, the Glazing is constructed from double or triple layer Polycarbonate plastic.
NOTE: Structural opening for this rooflight is the size of the rooflight. i.e 600x600mm rooflight = structural opening of 600x600mm


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  • 3mm Polycarbonate impact resistant glazing
  • UV Stable PVC-u white upstand
  • High impact resistant PVC-u
  • Double or Triple Layer
  • Clear or Opal diffused layers
  • Excellent waterproofing properties
  • Suitable for flat roofs, including single ply, GRP, hot melt, asphalt, liquid and lead

Diameters (Daylight size)

  • 600 (400)
  • 700 (500)
  • 800 (600)
  • 900 (700)
  • 1000 (800)
  • 1100 (900)
  • 1200 (1000)
  • 1400 (1200)
  • 1500 (1300)
  • 1800 (1600)
  • 2000 (1800)
  • 2200 (2000)


150mm GRP as Standard.

HeightMaterialProfile WidthU-Value EN ISO 10077-2
150mmGRP10mm1.6 W/m²K
300mmGRP20mm0.95 W/m²K
500mmGRP20mm0.95 W/m²K

Additional information


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Double, Triple