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COXDOME Glazed Rooflight without Upstand


Addlite Coxdome skylight replacement glass manufactured to a high standard with hail resistant glazing.This rooflight replacement unit is designed to be installed onto a new or existing upstand with a horizontal 50mm wide flat kerb top.

Coxdome glazed rooflights are leading the way in terms of quality and price. These flat roof glazed rooflights are available in 9 sizes up to 1500 x 1500mm in stock for immediate dispatch.
Glass unit U-value: 1.0 W/m²K

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The Addlite Coxdome skylight replacement glass range allows you to enjoy pure and natural daylight with clear panoramic views. The skylight has a clean modern design that looks great on the roof scope and the toughened outer glass pane has a ceramic edge coating giving you a stylish finish.

The rooflight is designed to be installed onto a new or existing upstand with a horizontal 50mm wide flat kerb top. Please note that your existing or new timber kerb is required to be at least 150mm high from the finished roof level to comply with building regulations and can be installed on a pitch of no more than 7°.

The slim aluminium frame has an internal thermal break which makes the rooflight energy efficient whilst also reducing the risk of condensation. The skylight comes complete with concealed fixing screws installed beneath the flush cover.

NOTE: Upstand and structural opening for this rooflight is the size of the rooflight. i.e 600x600mm rooflight = structural opening of 600x600mm


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  • Compatible with new or existing upstands
  • UV & Impact Resistant Reinforced Frames
  • Hail Resistant
  • Installation angle 0-7°
  • Toughened outer glass pane
  • Ceramic edge coating
  • Excellent Insulation Values
  • Internal thermal break


  • High Security Fixings as standard
  • U-value of 1.0 W/m²K (Vertical Pane)
  • 1B1 Injury Safety according to EN 12600
  • Sound reduction 35dB
  • CE Marking according to EN 1873


External Kerb Size

  • 750 x 750mm
  • 900 x 900mm
  • 900 x 1200mm
  • 1000 x 1000mm
  • 1000 x 1500mm
  • 1000 x 1800mm
  • 1000 x 2000mm
  • 1200 x 1200mm
  • 1500 x 1500mm


External kerb size [mm]Glass assemblyStockDaylightsize RO16 upstand [mm]Daylightsize Builders upstand [mm]
750 x 7506T-15-3.3.2Y600 x 600650 x 650
900 x 9006T-15-3.3.2Y750 x 750800 x 800
900 x 12008T-15-3.3.2Y750 x 1050800 x 1100
1000 x 10006T-15-4.4.2Y850 x 850900 x 900
1000 x 15008T-15-3.3.2Y850 x 1350900 x 1400
1000 x 18008T-15-3.3.2Y850 x 1650900 x 1700
1000 x 20008T-15-4.4.2Y850 x 1850900 x 1900
1200 x 12008T-15-3.3.2Y1050 x 10501100 x 1100
1500 x 150010T-15-4.4.2Y1350 x 13501400 x 1400

Additional information


750 x 750, 900 x 900, 900 x 1200, 1000 x 1000, 1000 x 1500, 1200 x 1200, 1000 x 1800, 1000 x 2000, 1500 x 1500


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