Solar Absorptance (A)
The amount of solar energy (visible, infrared and ultraviolet,) that is absorbed by the glazing system, expressed as percent.
When sunlight strikes glass, solar energy is either transmitted through the glass, absorbed by the glass or reflected away from the glass. The type of glass and window film applied causes varying absorptance results, expressed as a percent – this is the amount of solar energy that the glass and film retains. Always refer to a manufacturer’s film-to-glass installation recommendation.