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Rake
Edge of a roof
with the intersection of the gable.
Reaction
Forces acting
on a truss, through its support, that are equal but
opposite to the sum of the dead and live
loads.
Ridge
The horizontal
line made by the top surfaces of the two sloping roof
surfaces.
Rise
Vertical
distance from the bottom of the top chord at the butt
cut to the bottom (inside) of the top chord or from
the top of the top chord at the heel to the top of
the top chord at the peak.
Scab
Additional
timber connected to a truss to effect a splice,
extension or general reinforcement.
Scupper
Roof
drain.
Seat
Cut
Horizontal cut made on the
bottom of a sloping bottom chord to provide a
level bearing surface.
Set
Back
The distance
from the outside edge of the wall exclusive of
veneer, to the face of a hip master (girder)
truss.
Slider
Two inch
dimension lumber inserted between the top and bottom
chords at the heel joint in the plane of the truss to
reinforce the top or bottom chord.
Slope
Same as
Pitch.
Sloped
Soffit
Sloped
overhang with no level return.
Snow
Load
Same as
GSL Ground Snow
Load.
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