A B C
D E F G
H I J K L M N
O P Q R S
T U V W
X Y Z
WALL. A vertical member of a structure, enclosing or dividing
Apron Wall. That part of a panel wall between window sill and
Area Wall. 1. The masonry surrounding or partly surrounding an
area. 2. The retaining wall around basement windows below grade.
Bearing Wall. Any wall meeting either of the following classifications:
1. Any metal or wood stud wall which supports more than 100 pounds per
lineal foot of superimposed load. 2. Any masonry or concrete wall which
supports more than 200 pounds per lineal foot superimposed loads, or
any such wall supporting its own weight for more than one story.
Cavity Wall. A wall built of masonry units so arranged as to
provide a continous air/grout space within the wall (with or without
insulating material), and in which the inner and outer wythes of the
wall are tied together with metal ties.
Composite Wall. A multiple-wythe wall in which at least one of
the wythes is dissimilar to the other wythe or wythes with respect to
type or grade of masonry unit or mortar.
Curtain Wall. An exterior non-loadbearing wall not wholly supported
at each story. Such walls may be anchored to columns, spandrel beams,
floors or bearing walls, but not necessarily built between structural
Dwarf Wall. A wall or partition which does not extend to the
Enclosure Wall. An exterior non-bearing wall in skeleton frame
construction. It is anchored to columns, piers or floors, but not necessarily
built between columns or piers nor wholly supported at each story.
Exterior Wall. Any wall or element of a wall, or any member or group
of members, which defines the exterior boundaries or courts of a building
and which has a slope of 60 degrees or greater with the horizontal plane.
Faced Wall. A wall in which the masonry facing and backing are
so bonded as to exert a common action under load.
Fire Wall. Any wall which subdivides a building to resist the
spread of fire and which extends continuously from the foundation through
the roof. (NFPA 101)
Foundation Wall. That portion of a loadbearing wall below the
level of the adjacent grade, or below the first floor line.
Nonbearing Wall. Any wall that is not a bearing wall.
Parapet Wall. That part of any wall entirely above the roof line.
Party Wall. A wall used for joint service by adjoining buildings
or portions of buildings.
Perforated Wall. One which contains a considerable number of
relatively small openings. Often called pierced wall or screen wall.
Retaining Wall. A wall designed to resist the lateral displacement
of soil or other materials.
Shear Wall. A wall which resists horizontal forces applied in the
plane of the wall.
Single Wythe Wall. A wall containing only one masonry unit in
Solid Masonry Wall. A wall built of solid masonry units, laid
continuously, with joints between units completely filled with mortar
Spandrel Wall. That part of a curtain wall above the top of a
window in one story and below the sill of the window in the story above.
Trombe Wall. See trombe wall.
Veneered Wall. A wall having a facing of masonry units or other
weather-resisting non-combustible materials securely attached to the
backing, but not so bonded as to intentionally exert common action under
WALL PLATE. A horizontal member anchored to a masonry wall to
which other structural elements may be attached. Also called head
WALL PLUG. Metal insert used for nailing wood furring and studs
to masonry walls. Also called whistle anchor, nail clips.
WALL TIE. A bonder or metal piece which connects wythes of masonry
to each other or to other materials.
Veneer Wall Tie. A strip or piece of metal used to tie a facing
veneer to the backing.
WASH. A sloping upper surface of a building member, as a coping
or sill, to carry away water.
WATER RETENTIVITY. That property of a mortar which prevents the
rapid loss of water to masonry units of high suction. It prevents bleeding
or water gain when mortar is in contact with relatively impervious units.
WATER TABLE. A projection of lower masonry on the outside of
WEEP HOLE. An opening left or installed to prevent water from accumulating
behind a wall or within a wall.
WHEEL WINDOW. A circular window, usually large, having radial
mullions of stone molding.
WIRE CUT. Brick texture produced by trimming extruded clay to
size with wires. Referred to also as mission texture.
WIRE SAW. An assembly for sawing stone, both in the quarry and
in the mill, by a rapidly moving continuous wire (under tension and
commonly helical) that carries a slurry or sand or other abrasive material
through a slot that is deepened in the process.
WITH INSPECTION. Masonry designed with the higher stresses allowed.
Requires the establishing of procedures at the project site to monitor
and report on the mortar, grout, rebar grouting, workmanship and quality.
Usually performed by an independent inspection service (UBC).
WITHOUT INSPECTION. Masonry designed with the reduced stresses
WYTHE. 1. Each continuous vertical section of masonry one unit
in thickness. 2. The thickness of masonry seperating flues in a chimney.
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