ray.lux Flat Glass Rooflight

The ray.lux modular rooflight is a quality specification modular glass uPVC framed rooflight, stocked in a wide range of sizes for next day delivery. Supplied as fixed, manually or electrically opening for ventilation to a builder’s upstand or a thermally efficient proprietary uPVC upstand.

Product info

Key Benefits:

  • Good thermal and sound insulation properties
  • Factory pre-glazed for easy installation
  • Ventilation options available
  • Compatible with builders and uPVC upstands
  • 14 stocked sizes for next day delivery
  • Available in RAL 7016 (Anthracite Grey) and RAL 9010 (White)

Shapes and Sizes

ray.lux Glass modular rooflights are available in an extensive range of sizes to suit virtually any requirement.


The Shape of a rooflight relates to the shape of the hole in the roof. ray.lux Glass rooflights are available in the following shapes:

  • Square
  • Rectangular
Size availability

Offered in an extensive range of over 14 sizes from 500 x 500mm, through to 1200 x 2200mm roof opening (daylight size). Many sizes are available from stock for next day delivery if ordered before 2pm. Where units are to replace existing rooflights a range of curb adaptors are available. Click here to see the full size Chart

ray.lux Glass units are manufactured from double glazed glass with a 6mm toughened outer, warm edge spacer bar and 8.8mm laminated inner pane.


ray.lux Glass units are supplied in Clear glazing only.

ThermalCombined unit U-Value 1.26 W/m2K
Non-fragilityImpact tested to CWCT Class 1
Weather tightnessPass
Fire rating (tested according to EN 1873)Class B–s2, d0
Light transmittance76%


The 150mm vertical curb is made of shock resistant uPVC which does not need any additional finish. The curbs are equipped with a self-adhesive protection film on the inside, which must be removed at first use. When cleaning the curb, only use non-abrasive and neutral cleaning products to keep the smooth inner aspect

ray.lux Glass units can also be installed to a builder’s upstand by means of a 50mm high uPVC sub-frame.

Thermal Transmission
Curb TypeU-Value (W/m2K)
uPVC 150mm Vertical0.92


Natural ventilation of rooms is important for the health, comfort and performance of occupants and also significantly reduces building running costs by reducing energy consumption.  Effective air flow is also paramount for meeting building regulations.

Natural ventilation controls are also available, including wind, rain and temperature sensors, humidity and CO2 monitors, remote controls, and time controlled opening and closing.  They are designed to provide advanced switching options to control comfort ventilation for electrically opening rooflights.  The controls are compatible with both modular and continuous rooflight ranges and all building types.  Various options can be used in conjunction with each other.

Available options for ray.lux Glass rooflights:

Hinged Manual Spindle Opening

Hinged opening vents provide the maximum ventilation area to allow rapid air movement.  The manual spindle operation can be opened to any point up to 300mm and is operated by a Winding Rod available separately in 1.5m, 2m, 3m or 4m lengths – please enquire for more details.

Hinged Electric Actuator Opening

Powered hinged opening vents provide the maximum ventilation area to allow rapid air movement opening to 200mm.  The electric actuator operation allows control by a wall mounted open/close switch with options for wind, rain and temperature sensors, as well as CO2 monitors, and a range of control panels  available separately.

Certification & Performance


Whitesales’ ray.lux Glass rooflights are ‘out-of plane’ rooflights and deemed to be ‘non-fragile’.

Impact tested

ray.lux Glass rooflights have undergone large soft body  and hard body impact testing by an independent accredited test organisation according to CWCT TN66 and TN67 and passed according to Class 1 non-fragility.

CE Certified

There is currently no European norm to cover glass modular rooflights.

Further characteristics and certification:
Acoustic performanceRw=31 (-1;-1)dB
Air permeabilityClass 2
WatertightnesssPass (without penetration of water)
Up-effect loadingUL 3000
Down-effect loadingDL 2500


When installed in accordance with the manufacturer’s recommendations, ray.lux Glass units are expected to exceed the life of the roof covering. ray.lux Glass units are guaranteed against the effects of defective design, materials or construction for ten years, subject to certain conditions. ‘Special Project’ guarantees are available. For further details contact us.

Useful Downloads

These useful downloads provide further details on this specific product. If there is something you can’t find, or need more information, don’t hesitate to contact us.

Find out more

Would you like further information? We are here to help. Send us an enquiry with your project details. Direct purchases can be made through our national network of building and roofing merchants. Use our ‘find a merchant’ resource to find a branch in your area.