Mitered striped banding

Right away I have to acknowledge Scot Robbins for his brilliant painter's tape tip which I adapted for this project.  He uses the blue tape to mark drapery lead edges with wrapped banding- so you can wrap your side hems to the back and know that the banding on the front is all even.
Here I did much the same thing for Roman shade banding using a transparent quilter's rule as my guide.  First the band was glue-basted to the body of the shade.  The tape went on what will become the back of the band. 

Once it was all marked, I stitched on the fold line.

After everything is pressed into place, it's easy to wrap the band back, following the tape.

Just FYI, I applied fusible buckram to the bottom band to help keep it from curling.  Someday I'm going to do a whole blog post on all the things you can do with fusible buckram!