Comment on A film that can cool buildings without the use of refrigerantsparentComments−ph0rque9yHave another film above it that can be switched from reflective to transparent? These already exist, but are made of exotic materials (vanadium oxide, if I recall correctly) and thus expensive.
Comments
Have another film above it that can be switched from reflective to transparent? These already exist, but are made of exotic materials (vanadium oxide, if I recall correctly) and thus expensive.