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Frequently Asked Questions
Answers to common questions about Thermi Shield window films.
General
A thin, durable layer applied to glass that controls heat, glare and UV, and can add privacy and safety.
Not necessarily. Our premium nano films keep up to 70 to 75% light transmission, and CH-70, NRG-70 and R-Silver 70 are almost clear.
By rejecting up to 85% of solar energy, Thermi Shield films reduce the load on air conditioners and can cut electricity bills by up to 10%. Actual savings depend on your building, glass and usage.
Yes. All Thermi Shield films block 99% or more of UV rays.
Choosing a Film
Reflective films have a metal layer with a mirror finish that rejects more heat and gives daytime privacy. Non-reflective films are tinted and keep a natural, low-reflective look.
A film with a ceramic layer that rejects very high levels of infrared heat without a mirror finish. Crystal Cool Nano Ceramic Elite rejects 98% of infrared heat.
Black Out gives complete privacy. For daytime privacy with some light, choose R-Silver 20, R-Gold 15 or a dark non-reflective shade such as CH-05 or NRG-05.
No. Reflective films give privacy from the brighter side. At night, with lights on inside, the effect reverses, so curtains or blinds are recommended.
Installation and Care
Yes. Our non-reflective films have a super shrink property that makes installation on curved glass easy.
Your installer will tell you how long to wait before the first clean. After that, use a soft cloth and a mild, non-abrasive cleaner.
When bonded to glass, our films make it shatter-resistant, which reduces the danger from flying splinters if the glass breaks.
Warranty and Authenticity
Up to 5 years, depending on the product. See the Warranty page for details.
Check for the Thermi Shield watermark logo on the film before installation.