Glazing is an important part of framing, and although some artworks benefit from not being covered by a sheet of glass, most pictures and objects benefit from it. The glass can enhance the piece, but more than that, it helps conserve the piece and keep it free from dust and dirt. However, depending on the level of conservation needed, and the amount of light the piece is exposed to, standard glass may not be perfect depending on your project. Non-reflective, Conservation Clear, and Museum Glass all offer increasing levels of UV protection, along with better clarity. This helps ensure that valuable pieces are not only protected from fading, but that they are also clearly visible regardless of viewing angle or the amount of light in the room. They do also increase the cost of custom framing, but it is a worthy investment for irreplaceable pieces.