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Piggyback T
Piggyback T
r
r
usses
usses
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When roof trusses are too tall to be manufactured
and/or delivered, truss manufacturers will "cap"
the trusses and provide piggy back trusses. The
piggybacks below are shown above the roof so
that the purlin and bracing system can be seen.
Special diagonal bracing on the underside of the
top chords (in red) helps brace the purlins
themselves, and keeps them from shifting out of
plane.
Detail of the bracing system, with purlins (blue) and diagonal braces (red).
Hip truss shown with piggyback (field applied)
