the physical separator between the conditioned and unconditioned environment of a building, including the resistance to air, water, heat, light, and noise transfer
curtain wall
a form of building envelope, normally produced as unitized panels of aluminum and glass, that is suspended entirely on the exterior of a building
drawings
a visual representation of a design, including sketches and illustrations (e.g., blueprints, sketches, structural, structural erection, architectural, engineered, detail, erection, precast shop, shop, weld procedures)
dunnage
wooden boards and timbers used to hold material in place when being transported or stored
falsework
temporary steel or wooden supports upon which structural components are erected or pre-assembled
girts
horizontal or vertical framing member to which sash, siding or other finished material is attached
grating
an arrangement of parallel or latticed bars which serve as the floor of a platform, walkway, etc.
hoisting
raising, lowering and moving a rigged and suspended load. For the purpose of this standard, it includes lifting loads.
miscellaneous products
any product or component that is not a main structural supporting member (e.g., stairs, railings, canopies, solar screens, building signage, doors and wall supports)
ornamental components
non-structural steel, precast or composite members
positioning
moving rigged loads into position (other than vertical, which is considered hoisting)
precast
concrete product that is fabricated and cast in a location different than its intended permanent location (normally offsite in a pre-cast yard).
primary structural member
structural members essential to the overall integrity of the building or structure, such as columns, beams, girders, trusses, tie joists, footings, corbels and piers
secondary structural member
structural members that support themselves and transfer loading to primary structural members (e.g., infill walls, horizontal and vertical bracing, girts, purlins, flange braces, framed openings and joists)
steel cladding
corrugated sheet metal used in the building envelope
thermal cutting equipment
equipment using either electric arc or catalyzed combustion of pressurized gasses to cut or gouge materials
window walls
a form of building envelope that may be stick-built or produced as unitized panels of aluminum and glass, that bears on a floor level and spans from that floor to the ceiling