The question of whether to use glass or not is always a topic for arguments among needleworkers. Some steadfastly insist on using glass, others take the opposite view.
Which is right? I don’t know myself, I waver back and forth. Some pieces of mine have no glass and are fine while others are showing UV damage.
The choice is up to you. This article, from The Great American Frame-up, gives you some reasons why you might consider using glass. It also looks at what kind of glass to use and how to frame to make your work look its best.
It may not change your mind, but it will give you some factors to consider.