Applying Window Tint on Low-E Glass: Facts & Tips

Learn how to apply window tint on Low-E glass without issues. Discover the best films, avoid thermal stress, and enhance energy efficiency.

Debunking Myths: Applying Window Tint on Low-E Glass Windows

YES - you can apply window tint on Low-E (low-emissivity) glass! However, it requires careful selection of the appropriate film and proper professional installation techniques to avoid issues such as thermal stress and reduced performance of the Low-E coating. Here’s what you need to know:

Understanding Low-E Glass

Low-E glass is designed with a special coating that reflects infrared and UV light, improving energy efficiency by keeping heat out in the summer and retaining heat in the winter. The Low-E coating can be applied to either the interior or exterior surface of the glass.

  • Energy Efficiency: Reflects infrared and UV light.
  • Heat Management: Keeps heat out in summer, retains heat in winter.
  • Surface Application: Coating can be on interior or exterior surfaces.

Key Considerations for Tinting Low-E Glass


Not all window films are suitable for Low-E glass. It's crucial to choose a film specifically designed to work with Low-E glass to avoid potential damage or performance issues.

  • Specialized Films: Ensure the film is compatible with Low-E glass.
  • Avoid Damage: Incorrect films can cause damage or reduce effectiveness.

Thermal Stress

Adding window tint to Low-E glass can increase the risk of thermal stress, which occurs when there is a significant temperature difference between the glass's interior and exterior surfaces. This can lead to cracking or other damage.

  • Temperature Difference: Significant differences can cause cracking.
  • Minimize Risk: Select films that reduce thermal stress potential.


Low-E glass already has reflective properties, so using a highly reflective tint can cause excessive glare and aesthetic issues. Opt for a non-reflective or spectrally selective film that complements the existing Low-E coating.

  • Excessive Glare: Highly reflective tints can increase glare.
  • Aesthetic Issues: Reflective tints can alter appearance negatively.

Choosing the Right Window Film

Non-Reflective Films

These films are designed to reduce heat and glare without adding excessive reflectivity. They are ideal for maintaining the appearance and performance of Low-E glass.

  • Heat and Glare Reduction: Effective without adding reflectivity.
  • Maintain Appearance: Keeps the look of Low-E glass intact.

Spectrally Selective Films

Spectrally selective films block specific wavelengths of light (such as UV and infrared) while allowing visible light to pass through. This type of film enhances the energy efficiency of Low-E glass without compromising its benefits.

  • Selective Blocking: Blocks UV and infrared, allows visible light.
  • Energy Efficiency: Enhances Low-E glass performance.

Benefits of Tinting Low-E Glass

Tinting Low-E glass is possible and can enhance the energy efficiency and comfort of your space. However, it requires selecting the right type of window film and ensuring proper installation to avoid issues like thermal stress and reduced performance of the Low-E coating.

  • Energy Efficiency: Improved with proper film selection.
  • Comfort: Increased indoor comfort by managing heat and glare.
  • Protection: Additional UV protection for interiors.

By choosing non-reflective or spectrally selective films and relying on professional installation, you can successfully tint Low-E glass while maintaining its benefits. PuriTint will help guide you through the film selection process to ensure the correct film is installed.

Call us at 602-644-1595 to schedule a free consultation today!