The building assessment should outline areas that could be potential elements of collection deterioration from top to bottom.
Roof
A possible source for water damage. Sufficient drainage and
structural integrity must be maintained. Skylights increase the level of
ultraviolet exposure and possibilities of water leaks.
Windows / Screens
Windows are an entry point of moisture, ultraviolet light,
and corrosive gasses.
Broken screens and windows invite human predators, rodents and insects.
Basements
Should not be used to store collections. Areas below ground level
have an increased risk of flooding. Flooding can be caused by broken sprinkler
lines and plumbing mishaps. Sources of water should be kept away from collections.
Irrigation systems should be located away from the building's periphery.
Food sources
Staff lounges and kitchens in historical sites provide incentive
for unwanted pests and should be distanced from archival holdings. Trash
should be collected a safe distance from collection. Plants should be quarantined
and examined before entering exhibit or storage areas.
HVAC
Heating and cooling components should be a safe distance
from materials. Collection housings should not have direct currents blowing
on them and should be monitored for consistent temperature and
relative
humidity levels. Instruments such as
data loggers
and
psychrometers are a must for preservation efforts.
Fire
Fire is one of the most damaging element to a collection
due to it's rapid and unpredictable nature. Hazards such as faulty wiring
or natural gas sources should be rectified. Heat and smoke detectors should
be installed. Fire suppression systems can be designed according to needs
and resources.
Dry pipe systems are desirable since
they are less prone to accidental discharge and subsequent water damage.
Halon 1301 gas systems are ideal for valuable collections
but cost can be an inhibitive factor. Alternative gasses and carbon dioxide
systems are available but are used primarily in offsite storage.ii Fire
prevention is discussed more extensively in Disaster Planning.