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COXDOME Rooflight – Fixed Rooflight for Flat Roofs

(1 customer review)

£172.99 £150.50

FREE delivery to mainland UK, 2 working days
(except the sizes: 1000x1500mm and 1200x1800mm – these require 5-7 days delivery)

Coxdome fixed rooflight for flat roofs is manufactured to a high standard with double or triple glazing and a 150mm PVC Upstand.

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SKU: COX.FX Categories: ,


Coxdome fixed rooflight for flat roofs is manufactured to a high standard with double or triple glazing and a 150mm PVC Upstand. The thermally broken upstand manufactured from PVC plastic profiles ensures the thermal efficiency and prevents condensation.

Coxdome rooflights are leading the way in terms of quality and price. These flat roof fixed rooflight is available in clear or opal variants. Available in 13 sizes up to 1200 x 1800mm in stock for immediate dispatch.
Triple Layer U-value: 1.8 W/m²K

Coxdome Rooflight For Flat Roofs features a universal design which provides easy installation as well as high performance. Designed with a modular structure allowing a variety of configurations, the thermally broken frame manufactured from plastic profiles ensures a strong thermal performance and resilience to condensation formation.

For effective heat insulation our triple glazed fixed roof lights have a U-value of 1.8 W/m²K, the Glazing is constructed from double or triple layer Polycarbonate plastic which meets Part L 2013 requirements.

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


  • 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

Fixed Rooflight – Performance

  • High Security Fixings as standard
  • U Value 1.7 W/m²K based on triple layer
  • 150mm PVC Upstand U-value 1.8 W/m²K
  • Sound reduction 22dB
  • CE Marking according to EN 1873
  • Class B Non-Fragile, ACR(M)001:2005 Soft Body Tested
  • TP(a) Classification (only achievable with minimum 3mm polycarbonate
  • B-s1-d0 Fire Classification according to BS EN15301:1 2007


  • 600 x 600mm (structural opening 600 x 600mm)
  • 600 x 900mm (structural opening 600 x 900mm)
  • 600 x 1200mm (structural opening 600 x 1200mm)
  • 750 x 750mm (structural opening 750 x 750mm)
  • 750 x 900mm (structural opening 750 x 900mm)
  • 800 x 800mm (structural opening 800 x 800mm)
  • 900 x 900mm (structural opening 900 x 900mm)
  • 900 x 1200mm (structural opening 900 x 1200mm)
  • 1000 x 1000mm (structural opening 1000 x 1000mm)
  • 1000 x 1500mm (structural opening 1000 x 1500mm)
  • 1100 x 1100mm (structural opening 1100 x 1100mm)
  • 1200 x 1200mm (structural opening 1200 x 1200mm)
  • 1200 x 1800mm (structural opening 1200 x 1800mm)


GlazingLight Transmission'G' Value'U' ValueSound Reduction (dB)Fire classificationImpact
double-profileClear77%67%2.6 W/m²K*20dB1-3mm: B-s1-d0> 200 N/mm2
Diffused77%67%2.6 W/m²K*20dB1-3mm: B-s1-d0> 200 N/mm2
triple-profileClear71%57%1.7 W/m²K*22dB1-3mm: B-s1-d0> 200 N/mm2
Diffused71%57%1.7 W/m²K*22dB1-3mm: B-s1-d0> 200 N/mm2


HeightMaterialProfile Width'U' ValueFire Resistance
sf15150mmPVC-u25mm1.8 W/m2KD-s3-d1


Coxdome upstand

Additional information


1000 x 1000, 1000 x 1500, 1100 x 1100, 1200 x 1200, 1200 x 1800, 600 x 1200, 600 x 600, 600 x 900, 750 x 750, 750 x 900, 800 x 800, 900 x 1200, 900 x 900


Double, Triple

Layer Variant


1 review for COXDOME Rooflight – Fixed Rooflight for Flat Roofs

  1. Mark Jones

    Very competitively priced product. Easy to install. Would highly recommend.

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