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Prefabrication of Building Elements

Prefabrication of building elements can usually be completed off-site at 30% to 50% savings versus piece-meal construction in the field because:
  • Work is preformed in a climate controlled environment where weather effects are eliminated.

  • Parts inventory is readily available and doesn't need to be distributed in small quantities throughout the project.

  • Specialized work tables and equipment can accelerate the assembly process.

  • Quality control is enhanced due to easier inspections and climate control.

  • Safety is enhanced due to a controlled work environment which is undisturbed by other trades. Items can be assembled from the factory floor rather than at elevated locations.

Photo Courtesy of RK Mechanical
Model Courtesy of Structural Consultants
  • Exterior Wall Panels

  • Complex Steel Connections

  • Miscellaneous Steel Assemblies

  • Interior Chase Enclosures

  • Structural Stud Wall and Floor Framing

  • Plumbing Assemblies For Restrooms Including Stud Framing

  • Hospital Headwalls Including Piping and Steel Studs

  • Plumbing Risers at Multi-Story Buildings

  • HVAC Ductwork Sections to Lengths Limited Only to Shipping and Hoisting

  • Corridor Sections

Photo Courtesy of RK Mechanical

However, one of the major inhibitors to greater utilization of this technique is the uncertainty of building tolerances of work by previous subcontractor trades into which the prefab items must fit. Cost and schedule efficiency is lost when prefabricated components have to be field modified.

Aspenhills Consulting can assist you in the cost efficient transfer of required BIM details to field conditions. By working with the various trades during the design and shop drawing phase, necessary tolerances can be identified and incorporated into the model, then transferred to the actual construction. Team members can maximize their use of prefabrication techniques because of the BIM to field process.