Archives and museum collections contain diverse objects composed of organic materials such as paper, wood, leather, natural fibre, bone, cotton, etc. Effective museum humidity control is crucial because these organic materials are highly hygroscopic in nature and absorb moisture quickly. Without proper regulation, fluctuations in humidity can lead to the deterioration of these materials, causing warping, cracking, mould growth, and other forms of damage. Implementing precise humidity control measures ensures the preservation and longevity of valuable artifacts, maintaining their historical and cultural significance for future generations.
Effects of Uncontrolled Humidity
- Micro-organism growth
- Loss of artifacts and historic items
Conducive environmental conditions are among the most significant factors in the preservation of archives and museums. Uncontrolled humidity can create an environment that promotes the growth of mould, mildew, and other microorganisms, which can irreversibly damage delicate artifacts. Furthermore, excessive moisture can cause organic materials to expand and contract, leading to physical damage such as warping, cracking, and weakening of the structure of historic items. Therefore, maintaining stable humidity levels is essential to protect and preserve the integrity of these valuable collections.
General Recommendations
Cool and dry environment is preferred for preserving the organic material at archives and museums. It is recommended that storage of paper-based records, temperature should be maintained at 20°C and RH level at 30-50%. Consistent monitoring and control of these conditions help to prevent the detrimental effects of temperature and humidity fluctuations. Regular checks and maintenance are also necessary to ensure that the climate control systems function effectively, safeguarding the longevity and integrity of the archived materials.
Bry-Air Solutions
Bry-Air desiccant dehumidifiers, when used in conjunction with air conditioning, can provide the perfect environmental storage conditions for all sorts of valuable artifacts, documents and works of art. Bry-Air dehumidifiers provide a low humidity environment which prevents microbial attack. The dry air is often enough for preservation without necessarily involving temperature control.
Large and famous museums, churches and libraries use only dehumidification without temperature control to save and preserve the priceless treasures of the world.
Partial Reference List
- Akrib Negara, Malaysia
- Language and Literature Centre, Faculty of Science, Brunei
- Gulf Library, UAE
- Thailand Princess Library
- Central of H.H., Dalai Lama, India
- International Islamic University, Malaysia
- Library of Tibetan Works, Dharamshala, India
- Library, Delhi College of Engineering, India
- Don Bosco Centre for Indigenous Cultures, Shillong, India
