How does this product hold up on exterior window placement? We're trying to block a glare from a window onto our grass (it's burning the grass).

This film will hold up well and will come with a 3 year exterior warranty. You will not be able to see out, just so you know. If that is a problem, we have others that have used our black screen film on the outside to help solve that same problem! https://www.decorativefilm.com/sx-c390-black-screen