The goal for conservation/preservation framing is to use materials and techniques that will protect and preserve the item as closely as possible to its original condition. Below is a brief discussion of materials and techniques.

Matboard
Paper art generally is enhanced and protected with a mat border. A mat border provides the separation needed to prevent glass from coming into direct contact with the art. Another option is a spacer that would raise the glass above the art. The problem with glass contact is that the inks, paint or even the paper fibers can adhere to the glass damaging the art.

Conservation matboard is available in different levels of quality. The best matting is called “rag”, made from 100% cotton linters. Matboard buffered to the alkaline side of the scale is also considered conservation.

If you have noticed mats with burnt yellow bevels, usually framed years ago, the mats are likely ‘regular’ pulp matboard. The yellowing is acid 'burning' the matboard and anything near it. The yellowing not only stains but causes the matboard and art to become brittle and deteriorate. Just as the matboard on the top should be acid-free, so should the support board behind the art.

Glass
Paper art needs the protection of glass to prevent dust, pollution and insects from soiling and damaging the art. Some glazing offers protection from the color-fading effects of sunlight and florescent lights. No glass offers full protection from UV; the best protection is to hang art in areas of lower light.

The variety of glazing materials now available can be overwhelming. While regular glass offers 45% ultraviolet ray protection, conservation glass offers 97% protection. Regular nonglare glass does not provide UV protection, you must specify conservation nonglare.

Once it has been properly framed, where it is hung in your home or office can either preserve or hasten deterioration of the piece.

1) Keep out of direct contact with sunlight.

2) Moderation and stability in both humidity levels and temperature are good. Extreme fluctuations that occur in attics and basements are harmful.

3) An outside wall has more humidity than an inside wall. A fireplace has the most fluctuation especially if it is in use. If you have art over a fireplace, provide some space for air flow behind the painting by cutting a cork in half and placing it behind the two bottom corners.

4) Hang your art using two picture hangers. Not only does it secure the art more safely, but it will stay more level on the wall.