Pre-engineered metal buildings are popular with owners and developers since they provide a low cost economical solution for low rise steel framed construction. The PEMB supplier custom engineers the building to meet the code and owner specified minimum design load requirements. Using welded three plate columns and rafters with thicknesses varying in 1/16” increments and unlimited configurations for material utilization, the supplier has the ability to optimize the design to a great degree of precision. The PEMB supplier minimizes the cost to the owner but limits the flexibility to do future upgrades. This has owners asking "Where's the beef?"
What does the owner do to plan for expansion, install a new roof or install new equipment? These scenarios, as well as many others, create additional loads on the building or changes how the building performs. Many of these modifications, renovations and expansions occur years after the building was designed and put in to service. The building codes are continually changing, the owner may not have a set of the existing building drawings, or the site visit may reveal undocumented changes to the building. These are just a few challenges faced when deciding if the existing structure can adequately support the new loads being applied to the building.