Newer subdivisions in Barrie's south end were built with a lot of glass and not much thought about which way it faces. A west-facing great room picks up sun from early afternoon until it sets. Blinds fix it by removing the view you paid for.
Solar control window film sits on the glass and you keep looking out. The premium grade rejects 51% of solar heat, the house grade 33%, and both block 99% or more of UV, so the hardwood stops bleaching in a stripe under the window.