Tuesday, February 2, 2016

Prefabrication experiments - 89 - Stick Frame Panelization

The continuing effort toward the development of industrialized housing and building systems was and is held back in North America by the relatively low-cost manufacturing and construction of wood (stick) framing. The uninterrupted production of small components combined with simple construction methods prevailed over the highly symbolic and innovative potential of plastics, reinforced concrete and modernity's emblematic material: steel. The conventional balloon frame and the more recent platform frame integrated the benefits of mass-production with the convenience of on-site building. The wooden «two by» stud was to filigree construction what the clay brick was to masonry construction: a prefabricated modular building unit leveraged toward infinite options. It remains difficult for systems with greater costs and less flexibility, however innovative, to compete with stick framing.

The on-site accessibility, flexibility and adaptability of light wood framing along with its low-cost overshadowed its shortcomings in terms of quality control, waste and resource, both manpower and material consumption. Uniting stick framing and factory production of sub-systems through panelization of stressed skin wood framing has been experimented with and through today's information technologies is developing into a formidable industrialized building system offering the advantages of continuous production with the accessibility of stick framing. 

Factory automation allows wall panel composition, manipulation, manufacturing and quality control to be completely digitally verified reducing waste and enabling each panel to be designed and manufactured according to specific project designs. This mass-customization model of production is being reinforced by applications such as Autodesk’s Timber Framing, which make the design to construction process transparent. Noteworthy companies such as One Build (http://www.onebuildinc.com) are organizing their business models around panelization and are promoting flatpacked panels to further reduce the transport inconveniences associated with modular building. Although panels require more site intensive construction they also make weather tight on-site stitching easier to control. 


Panelized structures involve a margin of buildings produced today in North America. As technologies reinforce the customization of industrialized building components, the negative connotation of standardization is being replaced by the value of flexibility.  This value-added nature of the panel could be further optimized to integrate other building systems (hvac, electrical) and a more systematic approach offering homeowners greater knowledge over the life cycle costs of their buildings. 

Autodesk's Timber Frame App - screenshot

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