"Masonry," as used in this Section, shall be defined as exposed face
brick or natural building stone which is used as a facing component
which is applied over exterior wall back-up construction. Face brick
shall be prismatic units in a variety of sizes, colors and shapes.
Brick shall be manufactured from clay, shale or similar naturally
occurring earthy substances and subjected to firing in a kiln. Brick
shall be solid masonry units, having a minimum thickness of three
and five-eighths (3 5/8) inches and meeting all the requirements
of ASTM Designation C-216, Standard Specification for Facing Brick.
Ceramic glazed facing brick are specifically excluded. Natural building
stone shall include stone that is sawed, cut, split or otherwise finished
or shaped having a minimum thickness of one (1) inch. Natural building
stone shall include granite, limestone, marble, slate, soapstone,
sandstone or other natural stones of similar characteristics and physical
properties. Molded, cast or otherwise artificially aggregated units
composed of fragments are specifically excluded. Materials specifically
excluded from the definition of exposed masonry construction, shall
include, but shall not be limited to: all hollow masonry units (i.e.,
structural clay tile, facing tile, customized architectural concrete
masonry units, hollow brick units, etc.), all concrete masonry units,
glass blocks, plastic and/or composite blocks, metal panels, plastic
panels, plaster exterior insulation-finish system, precast concrete
panels or any composition and all cast-in-place concrete walls, tilt-up
concrete panels.