What is the total area referred to as under a single contiguous finished roof structure?

The term "Total Area Under Roof" accurately defines the entire space covered by a single continuous roof structure, regardless of how that space is utilized. This measurement typically encompasses all areas found beneath the roofing, including living areas, finished and unfinished spaces, and any additional sections that may not be accounted for in other classifications.

Living Area generally refers specifically to spaces designed for dwelling, which can exclude garages, basements, or attics that are not finished or accessible. Finished Area implies spaces that are completed and suitable for use, but it may not include all square footage under the roof if portions are not finished. Usable Space focuses on areas that can be actively utilized, typically overlooking non-functional spaces.

Thus, the distinction of "Total Area Under Roof" encompasses a more comprehensive view than the other terms, highlighting the totality of space available beneath a completed roof, making it the most accurate answer to the question.