factorybuilt

Factorybuilt refers to buildings or major components that are produced in a factory and then shipped to a site for assembly. The term covers several construction methods, including modular, panelized, and manufactured housing, each with distinct regulatory and logistical characteristics.

Modular construction involves assembling large sections or modules in a factory. Modules can be two or more stories tall and are transported to the site for stacking and final connection. Because modules are built to the jurisdiction's building code and inspected in factory and at the site, modular projects are often treated as site-built equivalents in terms of code compliance.

Panelized construction builds walls, floors, and roofs as flat panels in a factory, then ships them to the site where they are assembled. Panelized systems can offer precision and reduced on-site formwork, with potential for improved air sealing and energy performance.

Manufactured housing, long called mobile homes, is built on a permanent chassis in a factory and delivered to site. Since 1976, manufactured homes in the United States are regulated by the U.S. Department of Housing and Urban Development (HUD) under a federal code, rather than local building codes alone. After delivery, the home is installed on a foundation or other system and connected to utilities.

History and scope: factorybuilt has evolved from early prefab housing in the 19th and 20th centuries to modern modular and manufactured systems. The term is sometimes preferred for its neutrality over "prefabricated" or "mobile home" in certain contexts. Benefits include improved quality control, reduced site disruption, and faster completion; limitations include transportation constraints, higher up-front planning, and zoning or financing hurdles.

Notes: The cost and performance depend on design, location, and integration with site work.