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definitions index
CEMENT PLASTER.
A mixture of portland
or blended cement, portland cement or blended cement and hydrated
lime, masonry cement or plastic cement and aggregate and other
approved materials as specified in this code.
EXTERIOR SURFACES.
Weather-exposed surfaces.
GYPSUM BOARD.
Gypsum wallboard,
gypsum sheathing, gypsum base for gypsum veneer plaster, exterior
gypsum soffit board, predecorated gypsum board or water-resistant
gypsum backing board complying with the standards listed in
Tables 2506.2, 2507.2 and Chapter 35.
GYPSUM PLASTER.
A mixture of calcined
gypsum or calcined gypsum and lime and aggregate and other
approved materials as specified in this code.
GYPSUM VENEER
PLASTER.
Gypsum
plaster applied to an approved base in one or more coats normally
not exceeding 1/4 inch (6.4 mm) in total thickness.
INTERIOR SURFACES.
Surfaces other than
weather-exposed surfaces.
WEATHER-EXPOSED
SURFACES.
Surfaces
of walls, ceilings, floors, roofs, soffits and similar surfaces
exposed to the weather except the following:
1. Ceilings
and roof soffits enclosed by walls, fascia, bulkheads or
beams that extend a minimum of 12 inches (305mm) below such
ceiling or roof soffits.
2. Walls or
portions of walls beneath an unenclosed roof area, where
located a horizontal distance from an open exterior opening
equal to at least twice the height of the opening.
3. Ceiling and
roof soffits located a minimum horizontal distance of 10
feet (3048 mm) from the outer edges of the ceiling or roof
soffits.
WIRE BACKING.
Horizontal strands
of tautened wire attached to surfaces of vertical supports
which, when covered with the building paper, provide a backing
for cement plaster.
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