What are functional requirements in construction specifications?

Functional requirements in construction specifications refer to the intended performance and behavior of a system or component. These requirements outline how a building or system should perform under specified conditions, focusing on the expected outcomes rather than the methods of achieving them. They ensure that the design and construction meet the necessary criteria for usability, safety, and efficiency.

For instance, a functional requirement may specify that a heating system must maintain a certain temperature range within a building. This type of specification helps architects, engineers, and contractors understand the essential performance criteria that must be met to satisfy the needs of the users and to ensure compliance with relevant codes and standards.

The other options do not accurately represent functional requirements. Financial estimates relate to budget considerations, environmental assessments address ecological impacts, and contractor evaluations pertain to assessing qualifications and capabilities—none of which define how a system or component should perform in terms of functionality.