em.glaze flat glass Premium

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 glass Premium rooflight provides 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.

  • 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 3-5 day delivery time

S2  600  600    

S4  700  700    

S5  800  800    

S7  900  900    

S8  1000  1000  

S9  1100  1100    

S11  1300  1300    

S13  1500  1500    

S17  2100  2100    

R5  700  1000    

R6  700  1300    

R7  800  1100    

R16  1000  1300    

R17A  1100  1600    

R19  1100  2100  

R6M  700  2500    

R22z  1100  3100    

R30a  1600  3100

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.


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
  • NEW em.glaze Timber Sloping Kerb

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

The em.glaze Timber Sloping Kerb is ensures every em.glaze rooflight is fully compliant with Part L and B of Building Regulations, and supplied pre-assembled to reduce installation time on site.

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

  • Frame Aluminium
  • Gas: Argon
  • Warm spacer
  • Toughened outer pane
  • Laminated inner pane
  • Thermal break + box section
  • Install pitch (upstand): 5–15° recommended
  • Standard frit width 84mm
  • External frame colour RAL 7016 anthracite grey or any standard RAL colour
  • Ud-value (complete glass unit tested vertically) 1.23 W/m2K
  • Non-fragility CWCT TN66/67: Class 1
  • Airtight BS6375-1:2015 and BS EN 12207: Class 2 300 Pa
  • Wind loads BS 6375-1:2015 and BS EN 12210: Class A2
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