University of Virginia Library

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ENVIRONMENTAL CONTROL
 

ENVIRONMENTAL CONTROL

The columns, curved woodwork, and some of the antique furnishings require rigid humidity control. Even brief deviations from the specified humidity levels cause cracking and in some cases rapid deterioration. The Rotunda is equipped with an elaborate system for maintaining optimum temperature and humidity levels in all seasons. The system requires that all windows be kept tightly closed, and that all doors except the lower level entrance doors be kept closed. The glass doors overlooking the South portico should also be kept closed.