External Heat Rejection Window Film SolarCool Ultra

Experience the next level of indoor comfort with External Heat Rejection Window Film SolarCool Ultra — engineered to reduce solar heat while preserving the elegance of natural light. With near-invisible clarity and powerful heat rejection. External window films are designed to reflect solar heat and glare before it passes through the glass, making them one of the most effective solutions for reducing heat gain and improving occupant comfort.

They are particularly well suited to laminated glazing and modern glass systems featuring specialist coatings, where the installation of traditional internal window films may not be recommended due to the glass’s unique thermal properties.

When internal window film is applied to insulated laminated glass units or triple-glazed systems, it can increase the temperature of the inner pane relative to the outer pane. This temperature imbalance may place additional stress on the glass, potentially leading to cracking or breakage.

By applying the film to the exterior pane instead, the heat absorption occurs on the outer surface of the glazing unit. The external pane is able to dissipate a greater proportion of the absorbed solar energy back into the atmosphere, reducing thermal stress within the glass assembly. As a result, the risk of glass damage is significantly minimised while still delivering excellent solar heat and glare reduction.