Spandrel Area : That portion of the exterior wall between the top of one opening such as a window, and the bottom of another in the story directly above
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}