Offsite construction of plug-n-play units expanding across many building types
Order a house from a catalog? Yep! Sears started offering kit homes in its 1902 big book, so the idea of building modular is more than 100 years old. Stepping up in scale, the Contemporary Hotel at Walt Disney World in Orlando, which opened in 1971, was one of the first commercial structures to use a prefabbed steel chassis on which 500 guest room modules were craned up and hung.
Today, it seems the idea of offsite construction of modular units is beginning to surge. Key markets include: Healthcare, multi-family housing, higher-education housing and hospitality.
The rise may be particularly conducive to maintaining a construction schedule in the face of increasing labor shortages.
The looming Silver Tsunami
In the recent Building Design + Construction (BD+C) article, a construction executive said that many of those working in the trades are retiring – part of the looming Silver Tsunami – and there are fewer workers coming into the skilled trades.
Prefabrication will be increasingly be used to offset the decline in skilled workers, as well as in markets where a large number of projects soak up the shrinking pool or tradespeople.
Bathrooms are a good fit for prefabbing
The BD+C article goes on to say:
In order to receive the full benefits of designing and building with prefabrication techniques, such as bathroom pods, AEC firms should eye projects with repetitive layouts – hotels, student residence halls, inpatient towers, etc. “The more repetition, the more value in prefabricating, said Ray Rigsby, project executive with Gilbane Building Co. “Any building type that has repetitive floor plans lends itself to prefabrication.”
Part of the upswing in prefab pods comes with the rise in BIM, which allows for much greater precision in overall fit – not only within the unit as well as into the overall building structure.
Another gain comes from all players – architect, contractor and pod supplier – performing a BIM conflict analysis to eliminate potential clashes.