em.glaze flat glass rooflights are high-quality, aesthetically pleasing prefabricated flat glass rooflights.

Available in a wide range of sizes or made to measure, em.glaze flat rooflights provide a clean, minimalistic finish inside and out. Manufactured with flat sealed glass units, each rooflight incorporates a fully welded thermally broken aluminium frame and cill detail. All visible aluminium is polyester powder coated to Anthracite Grey RAL 7016 as standard or can be powder coated to a specific RAL colour if required.

Product info

Key Benefits:

  • Flush glazed glass-to-edge design
  • Non-fragile to CWCT Class 1 tested as standard
  • Good thermal and sound insulation properties
  • Factory pre-glazed for easy installation
  • Ventilation options available
  • Secure, welded glazing frame
  • Standard frit width – 84mm
  • Compatible with builders and uPVC upstands
  • Thermally broken frame
  • Aluminium frame powder coated to any RAL colour
  • em.glaze EasyClean available on short lead time
  • 14 stocked sizes available for next day delivery


Double glazed em.glaze modular flat glass rooflights are manufactured with 32mm hermetically sealed Low E, argon filled units as standard, with a warm edge spacer, providing a high-performance system.


The glass can be finished as Clear for highest light transmission or Opal Diffused for increased security. Solar Control and Self-Cleaning coating options are also available and can be combined if both are required.

Available options:

  • Clear
  • Opal Diffused
  • Solar Control
  • Self-Cleaning


em.glaze flat glass modular rooflights are designed to be used in conjunction with em.curb upstands and can also be installed to existing builder’s upstands.  For both options we recommend that the units are installed to a pitch of between 5˚ and 15˚.
em.curbs represent excellent value for money and enhance the overall appearance of the rooflight.

  • em.curb ECO uPVC 150mm Splayed
  • em.curb ECO uPVC 150mm Vertical
  • em.curb ECO uPVC 300mm Splayed
  • em.curb ECO uPVC 350mm Oversleeve Splayed

For full details on the performance of the upstand options available, see em.dome Upstands

em.collars are also compatible with this product and provide a thermally broken solution for replacing existing rooflights.  They would typically be installed to an existing or newly formed builder’s upstand where the dimensions do not suit a standard sized em.glaze flat glass modular rooflight.


em.glaze flat glass modular rooflights are available with any ventilation type, smoke ventilation and manual or electric roof access.

Options available:

  • Permanent Trickle
  • Controllable Trickle
  • Controllable Rotating
  • Hinged Manual Spindle Opening
  • Hinged Electric Actuator Opening
  • Powered Ventilation
  • Smoke Ventilation
  • Manual or Electric Opening for Access

Certification & Performance

Air tightnessClass 4 (60pa)EN12207/EN1026
Sound insulation34 (-2,-4) dBDS/EN717-1/A1
Light transmission86%
Weight55 kg/m2
Thermal insulation
(with uPVC 150mm Vertical upstand)*
1.24 W/m2KEN/ISO 10077-1
EN/ISO 10077-2

*Thermal transmission refers to U-Values.  For Ud-Values, please contact us.

All em.glaze flat glass modular rooflights, when installed on em.curbs in accordance with manufacturer’s instructions, are guaranteed for a period of ten years.  For further information contact us.

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Case Studies

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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.