Final answer:
The period from when a building is completed to when it is no longer safe is determined by structural integrity, material deterioration, and external events. Information on the building's age, damage history, and signs of decay like mold are vital in assessing its usability.
Step-by-step explanation:
The time after completion of construction until a building is no longer fit or safe to use can be referred to as the period until the building's structural integrity is compromised. This includes factors such as material deterioration, damage from external events like natural disasters or man-made incidents, and the failure to maintain the structure properly. Condition statistics like the number of years after completion that deterioration is noted and the impact of environmental factors such as bombs or natural disasters provide critical information in assessing the longevity and fitness for use of a building. The presence of mold, as mentioned, can be a significant indicator of water damage and potential health hazards, suggesting the need for assessment and possible remediation.
This refers to the period of time during which a building remains in a functional condition without significant deterioration or risk to its occupants. The service life of a building can vary depending on various factors, including the quality of construction, maintenance practices, environmental conditions, and usage.