Thermal Efficient Low U-Value Rooflight

RG Thermalite®

The ultimate modular, thermal efficient rooflight for outstanding performance in any application

Combining top quality multi-skin polycarbonate glazing elements with uPVC self-insulated upstands and edge frames, Thermalite rooflights can be confidently specified for virtually any application.

With their excellent thermal efficiency, Thermalite rooflights help to reduce energy consumption to make a contribution to lower carbon emissions.

  • Square or rectangular domes and pyramids in a wide range of sizes
  • Double or triple skin glazing
  • Total product U-value as low as 1.37 W/m²k, exceeding the requirement for Part L compliance
  • Design minimises risk of condensation
  • Clear, diffused, bronze or opal glazing
  • Foamed uPVC upstand requires no additional insulation
  • Polycarbonate glazing complies with current BS476 and BS EN13501 fire ratings
  • Suitable for use with all popular flat roof finishes
  • Secure frame fixing prevents forced entry
  • 20 year guarantee

Ventilation & opening options

  • Mechanically- and electrically-operated hinged ventilation units
  • Controllable trickle ventilation to upstands
Download modular rooflights range brochure