Heat blocking window films are well known solutions for uncomfortable heat and glare. Many customers come to us wanting to know how to cool their homes and offices. Window films will block harmful UVA and UVB rays, and most of our films reduce some amount of heat and glare. The question then, is which window film will block heat the best?
If you’re looking to cool your rooms and privacy isn’t a concern, solar film is a good option. Solar film comes in a variety of different colors and shades, all of which reduce some amount of heat and glare. While solar film will help reduce heat and reduce glare in your home or office, it doesn’t provide any added privacy.
If you are looking for both privacy and cooler rooms, solar film probably isn't the answer. Reflective window film on the other hand might be. Reflective window film reduces the maximum amount of heat, as well as increases privacy.
When we compare reflective window film to solar film, keep in mind that reflective window film is darker and thus blocks more heat than standard solar film. For example, One way mirror film blocks the most heat, light, and glare. darker and more reflective tints offer greater heat rejection than lighter tints across the board.
Silver reflective window film series is made up up R20 R35 and R50 is a good compromise between maximal heat rejection, privacy, and cost. The number means that in the series, R20 lets in the least amount of light (20%) and so has the darkest reflective silver tint. It blocks more than 80% of sun glare.
R35 and R50 let in more light than R20 (here, 35% and 50% of light is let in, respectively), and so they are lighter than R20. The three films perform similarly otherwise, except in the numbers: R35 blocks 69% of glare, say, while R50 blocks 46%.
Office buildings and businesses have different goals then homes, and reflective window film is common on commercial buildings. Commercial property managers often go with reflective window film because they get the maximum amount of heat rejection and privacy via mirror reflection.
I hope this was helpful. Feel free to leave any questions or comments below 😎