Architects & Specifiers
We believe that our FRS flat rooflight is the most thermally efficient rooflight on the market, with a combined frame and glass Ud value of 1.2W/m²k.
The centre pane value of the triple glazed units we use is 0.8W/m²k including the correction factor of 3 from vertical calculations. All of the above calculations have been tested using a registered certified simulator with the British Fenestration Rating Council (BFRC)
Our 2mtr x 1mtr walk-on glass panels are offered with an external leaf of 3 x 8mm clear toughened panels laminated with 'Sentry Glas' interlayers giving a stress of 21.1N/mm² where the permitted figure is 35N/mm².