Flex-Joist™ allows more response time in case of overloads

Flex-Joist™ is an innovative, tension-controlled open-web steel joist that gives steel building systems consistently higher steel joist performance at an affordable cost. With safety a cornerstone of the proven design, Flex-Joist™ protects against potential overload conditions in excess of engineered capacity and the related risks of damage, injury and exposure to liability. In the event of a roof overload condition, the Flex-Joist™ system deflects slowly to allow time for building evacuation and roof shoring.

Laboratory-tested Flex-Joist™ has been shown to exceed standard steel joist design for strength, reliability and ductility, providing ample opportunity to prevent property damage, personal injuries and lost revenues caused by roof collapse. A Flex-Joist™ loaded in excess of its elastic limit will continue to sustain loads at the joist’s plastic load capacity. Any loads added in excess of the plastic load capacity of the individual joist will be transferred to adjacent joists, further extending the timeframe for emergency management, prior to a collective collapse.