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module 7 trade terms

Terms in this set (17)

Barge rafter
a gable end roof member that extends beyond the gable to support a decorative end piece. also referred to as a fly rafter.
Bottom chord
the lower member of a truss.
dormer
framework extending from the roof surface that provides additional light and vetilation to an attic space
false fascia
the board that is attached to the tails of the rafters to straighten and space the rafters and provide a nailing surface for the fascia. also called subfascia and rough fascia
gable
the triangle wall enclosed by the sloping ends of a ridged roof
hip roof
a roof with four sides or slopes extending toward the center.
lookout
a structural member used to frame the overhang.
open web steel joist
steel joist, also known as a bar joist, that is used to support roof loads.
purlin
a horizontal roof support member parallel to the plate and installed between the plate and the ridgeboard.
ribband
a 1 x 4 nailed to the ceiling joists at the center of the span to prevent twisting and bowing of the joists.
ridgeboard
horizontal board placed at the ridge of the roof. upper ends of the rafters are fastened to it.
spreader bar
a rigging device used when lifting large members with a crane
stick-built framing
framing method in witch framing members are installed one at a time.
strongback
an L-shaped arrangement of lumber used to support ceiling joists and keep them in alignment
tag line
cord or rope attached to a structural member or other large unit that is being positioned by a crane, to assist in guiding the member into a proper position
tiedown
metal anchoring device used to fasten framing members to one another
unit rise
the amount that common rafter will rise per foot of run
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