Metal building terms and definitions – Mueller Pre-Fab User Manual
Page 110
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MeTal bUIlDInG TeRMs anD DefInITIons
slide Door:
A single or double leaf door that
opens horizontally by means of sliding on an
overhead trolley .
slope:
See “Roof Slope”.
snow load:
See “Roof Snow Load”.
snug Tight:
The tightness of a bolt in a connection
that exists when all plies in a joint are in firm contact .
soffit:
A material that covers the underside of
an overhang .
soldier column:
An intermediate column used
to support secondary structurals; not part of a
mainframe or beam and column system .
span:
The distance between supports of beams,
girders, or trusses .
specification (Metal building system):
A statement of a set of Metal Building System
requirements describing the loading conditions,
design practices, materials and finishes .
splice:
A connection in a structural member .
spud Wrench:
A tool used by erectors to line up
holes and to make up bolted connections; a wrench
with a tapered handle .
square:
Term used for an area of 100 square feet .
standing seam:
Side joints of roof panels that are
arranged in a vertical position above the roofline .
standing seam Roof system:
A standing
seam roof system is one in which the side laps
between the roof panels are arranged in a vertical
position above the roof line . The roof panel system
is secured to the roof substructure by means of
concealed hold down clips attached with screws
to the substructure, except that through fasteners
may be used at limited locations such as at ends of
panels and at roof penetrations .
stiffener:
A member used to strengthen a plate
against lateral or local buckling . Usually a flat bar
welded perpendicular to the longitudinal axis of
the member .
stitch screw:
A fastener connecting panels
together at the sidelap .
stress:
A measure of the load on a structural
member in terms of force per unit area .
strut:
A member fitted into a framework that resists
axial compressive forces .
Tapered Members:
A built up plate member
consisting of flanges welded to a variable depth web .
Tensile strength:
The longitudinal pulling stress a
material can bear without tearing apart .
Thermal block:
A spacer of low thermal
conductance material .
Thermal Resistance (R-value):
Under steady
conditions, the mean temperature difference
between two defined surfaces of material or
construction that induces unit heat flow through
unit area . Note: Thermal resistance and thermal
conductance are reciprocals . Thermal resistances
are R-values, to obtain the U-factor, overall thermal
transmittance; the R-value for either materials or
constructions must first be evaluated because, by
definition, the U-factor is the reciprocal of the sum of
the individual R-values .
Through-fastened Roof system:
A through-
fastened roof system is one in which the roof panels
are attached directly to the roof substructure with
fasteners which penetrate through the roof sheets
and into the substructure .
Ton:
2000 pounds .
Track:
A metal way for wheeled components;
specifically, one or more lines of ways, with
fastenings, ties, etc ., for a craneway, monorail or
slide door .
Translucent light Panels:
Panels used to
admit light .
Transverse:
The direction parallel to the
main frames .
Trim:
The light gage metal used in the finish
of a building, especially around openings and at
intersections of surfaces . Often referred to
as flashing .