Window or glass film that lets light pass through, deflects heat. Does it exist? Answered
Just wondering is there such a thing? If it does, what would it be called?
I'm looking for some kind of window film that can maximize the natural sunlight coming in, yet at the same time deflect most (if not all) of the heat. Some kind of film that can be layered/sticked onto windows, glass.
Been googling around to no avail. Any kind of help is appreciated