Bar joist buildings are often times insulated on the underside of the roof deck to increase the building s energy efficiency.
Steel bar joist roof.
These concentrated loads often include standard steel joists that are in turn supporting steel roof or floor deck.
Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike.
Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs.
For floors concrete is typically poured over the decking.
Decking is made by forming and coating sheet steel.
Therefore steel bar joists or also known as open web steel joists for framing floors and roofs offer many advantages when compared to a wood truss or steel beam system.
Steel joists handle loads and span conditions that a tradition wood system cannot typically handle.
Joist girders serve as primary framing members with simple spans to support concentrated loads for a roof or floor system.
New millennium produces roof form and composite floor decking as well as specialty profiles dovetail deep deck and bridge deck.
It is installed above the joists to serve as a base of support for either a roof or a floor.