Comparing Vista VS 60 to clear glass up in Grey Eagle. – The homeowner of this beautiful Grey Eagle residence was concerned about sun damage and at that altitude, they should be. Vista VS 60 was chosen because it still lets a lot of the natural light in but it blocks 55% of the heat and 99.9% of the sun’s damaging UV rays. Not just any window film can reduce sun damage and look virtually clear, certain wavelengths of elctromagnetic energy must be filtered out and Sierra Window Tinting carries just the right films for the job!