Brian Monetti, I spent several years working in home improvement and construction
Guessing you mean the red and white striped layers on both sides of the tape? I found the best way to manage this type of tape is to fold or roll it back and forth a few times before applying. Then the backing can come off easier. Its best to peel one side off and then apply it to the window frame, because if you pull both sides off right away you will just get your fingers stuck! Once the tape is on the frame, you should be able to peel the other side off. Sometimes you need to scratch the tape a bit, maybe with a knife, to get the peel away layer to lift off a bit. Good luck!