Framing art can increase the value of a piece in several ways. Firstly, it helps to protect the artwork from damage, preserving it for future generations. A well-made frame can also enhance the aesthetic of the piece, making it more visually appealing and therefore more valuable. Additionally, Art framing can help to authenticate the artwork, providing provenance and context that can be important factors in determining value.

When it comes to framing, the materials used can also play a role in increasing value. High-quality frames made from materials such as wood, metal, or acid-free matting can add to the overall aesthetic of the piece and increase its value.

However, it's important to note that not all art needs to be framed, and in some cases, it can actually decrease the value of a piece. For example, some contemporary art is meant to be displayed without a frame, and adding one may detract from the artist's intent. Additionally, over-framing a piece, using overly ornate or gaudy frames, can also decrease the value.

In general, it's best to consult with an art expert or appraiser when determining whether or not to frame a piece of art, as they can provide guidance on what will best enhance the value of the piece. It's also important to ensure that the frame and materials used are appropriate for the style and age of the artwork.

In summary, while framing art can increase its value, it's not always necessary or appropriate. The materials used and the way it's framed must be appropriate for the artwork and its style. A professional art expert or appraiser can provide guidance on how to best frame a piece to increase its value.