Then, window movie is applied to the tape. At the bottom in the window, the film is connected to a piece of tape over the sill, earning a seal. Finally, the film is heated that has a handheld blow dryer to create a clear, airtight seal free from wrinkles. From https://ambient-indoor-lights23210.ourcodeblog.com/34819419/considerations-to-know-about-draft-proofing