em.glaze flat glass Electric Opening

em.glaze Electric Opening Flat Glass Rooflights blend smart technology, safety, and weather performance with a contemporary aesthetic. With a flush glass-to-edge design and stylish black frit panel, this rooflight will add the finishing touch to your project.

  • 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
  • Thermally broken aluminium profile
  • Concealed hinge with no visible fixings internally or externally
  • Single or tandem actuators which communicate with each other
  • Unit fits builder’s kerb, uPVC kerb and Whitesales pre-fabricated Timber Sloping Kerb
  • 15 sizes available from stock in 3-5 days
  • Bespoke sizes in 5-8 weeks
  • Window Master intelligent control unit with App for mobile phone connectivity

S2  620  620    

S4  720  720    

S5  820  820    

S7  920  920    

S8  1020  1020  

S9  1120  1120    

S11  1320  1320    

S13  1520  1520    

S17  2120  2120    

R5  720  1020    

R6  720  1320    

R7  820  1120    

R16  1020  1320    

R17A  1120  1620    

R19  1120  2120  

R6M  720  2520    

R22z  1120  3120    

R30a  1620  3120

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 Electric Opening flat glass modular rooflights, when installed on em.curbs and Timber Sloping Kerbs in accordance with manufacturer’s instructions, are guaranteed for a period of ten years.  For further information contact us.

Em.glaze Electric Opening units feature concealed actuators, offering a sleek and minimal look. The special actuator bracket allows the unit to be detached from inside in the event of power failure.

We offer single or tandem actuators depending on the unit size. Tandem units don't require additional control panels as the intelligent actuators communicate with each other.

em.glaze Electric Opening is available in standard RAL 7016 externally and White RAL 9016 internally.

It is compatible with our Timber Sloping Kerb which complies with new Building Regulations and is supplied pre-assembled for fast installation.


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 or Timber Sloping Kerbs, 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˚.

Suitable upstands: 

  • 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

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.

Premium comfort controls:

Intelligent control unit that harnessing the latest smart building technology from our partner Window Master®:

  • App - Fresh Air Control
  • Option of WCC comfort kit including a control panel & rain sensor.
  • Rain sensor can be upgraded to combined wind & rain sensor
  • Option of room thermostat

Up to 80%

  • 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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