Then, window film is applied to the tape. At the bottom of your window, the film is connected to some bit of tape on the sill, creating a seal. Finally, the film is heated that has a handheld blow dryer to make a clear, airtight seal absolutely free from wrinkles. https://designer-indoor-light-fix81345.educationalimpactblog.com/56266996/the-2-minute-rule-for-soundproofing