(e) Special areas to be considered:
(1) Exterior Stacks and Chimneys:
Count free standing masonry stacks only once. Exterior masonry stacks attached to the
building are counted on each floor. Exterior stacks that are not enclosed in masonry are
not counted.
(2) Areas which are not counted in gross area:
Pipe basement or crawl space
Areaways, either grilled over or open
Cat-Walks
Outside ramps or steps (without cover)
Cooling towers
Exposed mechanical equipment enclosed with a screen wall but not roofed
Fuel tanks or pneumatic tanks placed underground
Oxygen storage tanks placed on a slab at ground level, enclosed by a fence or
screen
Mezzanine or balcony in two-story rooms when mezzanine or balcony is a grille
floor without equipment
Porches
Outside balconies
Areaways
Loading platforms
Covered driveways
Other roofed areas or passage without enclosing walls
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