1.1.12 Adding a solar control window film

1.1.12 Adding a solar control window film

The solar control film, easily applicable on window glasses, has the property of reflecting part of the solar radiation received, decreasing the amount of energy that passes through the glass.



  • Solar films block 99% of UV light that fades furniture

  • Films add security, slowing down a break in and holding shards together if the window shatters.

  • While mainly it is a retrofit product, some films can make a low-cost new window as efficient as a low-E, triple-pane unit
  • Overheating is reduced as well as air conditioning needs

  • Increase internal comfort


  • Some window manufacturers warn that films will void their window warranty; however, several film manufacturers offer to match it

  • Certain lites, latches, and frames make installation difficult, and a bad application can leave glass looking bubbly

  • Most homeowners are skeptical of the benefits, making film a hard sell that requires education

  • It can block a great part of natural light, increasing lighting needs

Economic assessment

Low investment. The approximate cost of low emissivity layers is 20 €/m2, although it varies for each type of layer. Savings of 1 to 14 €/m2 are expected. Window films can cut utility costs by 30% to 40%. It is much cheaper than replacing windows.


References and best practices

Image gallery


Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices

Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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