Friday, September 18, 2009

Family Photo Storage - Some Major Environmental Factors

Despite the good intentions of many families to better organize family photo prints, stacks of photo prints are often stored in unfriendly environments.

Until they get around to organizing the photo print collection, it is useful for them to understand that some things can be done quickly and easily to prolong the useful life of the images.

Most deterioration of the paper, pigments, and binders used for older prints is attributable to chemical reactions. Therefore, any effort to minimize or slow these chemical reactions is helpful. The attic, basement, and garage are simply not good places to store photo prints.

Major environmental factors related to these locations include:

Temperature - Museums strive to maintain temperatures of roughly 70 degrees Fahrenheit. Although it may not be possible to control temperature as precisely as a museum, the further outside of a human comfort zone, the greater the risk to your collection. Extremes and dramatic swings in temperature damage the paper and other materials in photos and documents by accelerating chemical reactions and/or by expansion and contraction.

Humidity - Museums typically strive to maintain a relative humidity of 50%. Particularly in combination with temperature extremes, humidity both initiates and accelerates many chemical reactions. High humidity can also create an environment conducive to mold and mildew, a situation that can cause rapid deterioration and irreversible damage.

Pollutants - Pollutants include a broad range of substances or objects that cause or accelerate chemical reactions, or create an increased risk of abrasion or other surface damage. These pollutants include dust, smoke, fumes from cleaning materials, chemicals and acids present in improper storage materials, and many glues and tapes used to mount and display images. Even fumes being created by natural chemical reactions in unventilated storage can accelerate other chemical processes. Clean storage areas, reasonable ventilation, and proper archival storage materials reduce the risks associated with most pollutants.

Pests - Insects and rodents may choose to take up residence in certain types of paper. Worse yet, they may perceive the collection to be a food source. The best way to avoid pest damage is to periodically inspect the collection in order to detect and resolve a pest problem early.

Exposure to Light - Museums go to extraordinary lengths to control exposure of collections to certain types of light. Many types of lighting, particularly direct sunlight, impact chemical reactions of the different materials that may be contained in displayed objects, and fade or discolor images in a meaningful way. Careful placement of displayed images, rotation of collections, use of special lighting, and day-to-day display of duplicates, are some of the many techniques used to control the level of exposure to harmful light.

Therefore, at a minimum, photo print collections should be stored in areas of the house that feel comfortable to the home owners. It is better to store the prints in a closet than in an attic, garage, or basement, as the temperature and humidity is likely to be closer to museum standards and more consistent in the closet. It is also important to eliminate obvious pollutants such as paper clips and rubber bands. Use of proper storage materials such as acid free envelopes and boxes will also help to prolong the useful life of the prints.

For additional tips and resource suggestions on family photo and document storage, organization, and image sharing, visit LocalArchiver.com.

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