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Window Film Specifications

Choosing the right window film

The specification sheets for each window film can be easily downloaded in a PDF.

Here are some key terms to help you when shopping and comparing window films.

  • Total Solar Energy Rejection – measures the film’s ability to keep infrared heat, UV rays and visible light from entering the living area. The higher the number, the more comfortable you should be.
  • Visible Light Transmission – measures how light or dark the film is. The lower the number, the darker the film. A film with a 49% light transmission provides an excellent balance of glare reduction and visibility.
  • Visible Light Reflectance – measures the percentage of visible light that is being reflected by the window film. The higher the number, the more shiny the appearance of the film.
  • UV Rejection – measures how much of the ultraviolet A and B rays the film blocks when applied to glass. UV rays contribute to premature fading of draperies, furniture, flooring and other home decor items.
  • Shading Coefficient – measures the net benefits of a window treatment to reduce heat gain. Utility companies often endorse films with a shading coefficient of .50 or lower.
  • Solar Heat Gain Coefficient – The ration of the total solar heat passing through a given window product relative to the solar heat on the window surface. Lower the number, the better the film is at reducing the heat.

Need help choosing the right film? Call us on 01428 751004 for advice or a Free No Obligation quotation for us to install. Or visit our online shop for DIY window films.