What is an acceptable damp reading

What is an Acceptable Damp Reading?

Damp readings are an important consideration when valuing and storing antiques. An acceptable damp reading varies depending on the type of material and the intended storage environment.

Wood

  • For most types of wood, an acceptable damp reading is between 7% and 15%.
  • Wood that is too dry can become brittle and susceptible to cracks.
  • Wood that is too damp can swell, warp, and attract mold.

Metal

  • An acceptable damp reading for metal is generally between 0% and 5%.
  • Dampness can cause metal to corrode.
  • Storing metal in a humid environment can lead to premature aging.

Textiles

  • Textiles, such as fabrics, paper, and leather, are particularly vulnerable to dampness.
  • An acceptable damp reading for textiles is typically below 10%.
  • Dampness can cause textiles to rot, stain, and become infested with mold.

Factors to Consider

When determining an acceptable damp reading, consider the following factors:

  • Storage environment:
    • An antique stored in a humid environment will require a lower damp reading.
    • An antique stored in a dry environment will tolerate a higher damp reading.
  • Material composition:
    • Different materials have different moisture tolerance levels.
    • It is essential to research the specific material before determining an acceptable damp reading.

Maintaining an acceptable damp reading is crucial for preserving the condition of antiques. By adhering to these guidelines and using a reliable moisture meter, antique owners can ensure their valued possessions remain in pristine condition for generations to come.