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	SpirInCo Terminology
	core	The central area/room of a building—usually houses utility, maintenance, and mechanical units on the first floor.
	core cap	The roof over the top *‘story’* of the *core*
	face	One exterior side of a building—usually a straight wall that’s actually parts of two *levels*.
	footprint	The outline or base of a building where the foundation meets the ground. This is a common expression for any building.
	increment	The amount of vertical difference between consecutive *levels* of a building.
	level	A single *story* area of a *section. There can be one level* in a *section* or multiple *levels, stacked a story* apart.
	profile	A side view, or cross section, of a building. (Silhouette)
	radial wall	A wall that extends from the *core* of a building out to the exterior.
	rafter-wall spacer	A spacing component that has the same thickness as a *radial wall, is positioned over a radial wall*, but with the top sloping like rafters.
	revolution	A series of consecutive *levels* that make up 360° around the *core*.
	section	A portion (wing) of a building that extends from the *core* of the building to the outside walls.
	story	Same meaning as with traditional buildings