Glass compatibility guide
Why glass type matters, and which glazing needs extra care before applying film.
Solar and reflective films absorb heat, which creates thermal stress in the glass. Whether that is a problem depends on your glazing. If your glass specification cannot be confirmed with reasonable confidence, we recommend against installing a solar control film until it has been reviewed.
General guidance by film type
- Frosted / decorative films — minimal solar absorption, generally safe on single, double (toughened and non-toughened) and triple glazing.
- Safety & security films — generally suitable for most glazing where the glass is sound and undamaged.
- Solar control films — light/medium interior grades are usually fine on single pane, double glazed and toughened double glazing. Dark interior grades need an assessment on non-toughened double glazing, and interior solar film is not recommended on triple glazing. Exterior solar films are generally safer because they reflect heat before it enters the pane.
Glazing that needs extra care
Annealed (non-toughened) glass, laminated glass, triple glazing, very large panes, tinted glass, Low-E coated glass, gas-filled units, and any unknown or older glazing.
Important
No supplier can guarantee glass will not crack, because hidden defects — edge damage, manufacturing flaws or age-related weakening — cannot be verified after installation. Films work on smooth, flat glass; not on textured, patterned or heavily curved glass.
If in doubt, contact our technical team with your glass type before ordering.