Nucor Building Systems supplies either
cold-formed Zee section purlins or open web bar joists.
The decision on which structural members to use will
be based on the economy of each member, the roof system
used, the product application, or by customer choice
at the time of order entry.
continuous purlin system meets the stringent requirements
of the latest edition of the AISI specification. All
open web joists are designed in accordance with the
Steel Joist Institute requirements. Purlins of 12”
depth are also available for some applications.
Consult Nucor for specifics.