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film to glass compatibility - glass roof

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  • To avoid thermal breakage use only if chart indicates (yes) as safe to use

Film-to-Glass compatibility guidelines

Solar control window films and some privacy window films work by reflecting, absorbing, transmitting and re-radiating solar energy. The way this is done can cause the glass to expand at a slightly greater rate than glass without film. With laminated glass, Georgian wired glass and some tinted glass this expansion can lead to thermal stress, under certain circumstances this may cause the glass to fracture. It is therefore important to ensure compatibility by fitting the correct film to your particular glazing.

Follow the guidelines below to ensure a trouble free installation.

RS20 /RS35

Clear S/G Clear D/G Tinted S/G Tinted D/G

Float/Annealed

yes yes no no

Toughened

yes yes yes yes

Laminated

yes no no no

Georgian Wired

no no no no

Key: S/G = single glazed / D/G = double glazed

  • to avoid glass cracking due to differential of expansion film should completely cover the pane
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