Modular buildings, also called prefabricated homes or precision built houses, are built to equivalent or higher standards as onsite stick-built homes. The construction method is known as permanent modular construction.
Construction is offsite, using lean manufacturing techniques to prefabricate single or multi-story buildings in deliverable module sections. Permanent Modular Construction (PMC) buildings are manufactured in a controlled environment and may be constructed of wood, steel, or concrete. Modular components are generally constructed inside on assembly lines. Modules' structure may take as few as ten times but more often a few months. PMC modules can be integrated into website constructed projects or stand alone and can be sent with MEP, fixtures and interior finishes.
Modular buildings may be used for long-term, temporary or permanent facilities, such as building crews, schools and classrooms, military and civilian home, and industrial centers. Modular buildings are employed in remote and rural regions where traditional construction may not be possible or reasonable, by way of example, the Halley VI lodging pods used for a BAS Antarctic expedition.  Other applications have included churches, healthcare facilities, retail and sales offices, fast food restaurants and cruise boat construction. They may also be used in areas that have weather concerns, like hurricanes.
Permanent modular structures are built to meet or surpass the exact same building standards and codes as site-built structures and the same architect-specified materials used in conventionally built buildings are used in modular construction jobs. PMC can have as many stories as construction codes allow. Unlike relocatable buildings, PMC structures are meant to stay in 1 place for the whole period of their useful life.
Modular buildings and modular houses are prefabricated houses or buildings that contain recurrent sections called modules. "Modular" is a construction method that involves assembling sections from the construction site, then delivering them to the planned website. Installation of these prefabricated sections is completed on site. Prefabricated sections are occasionally placed utilizing a crane. The modules can be set side-by-side, finishing, or piled, allowing a variety of styles and configurations.
The full process of modular building puts significance on the design stage. It's vital that there is enough allowance in the layout to enable the meeting to take any"slack" or misalignment of elements. The usage of advanced CAD systems, 3D printing and production management systems are important for modular construction to be successful. This is very unlike onsite construction in which the tradesman can frequently make the part to suit any particular installation.
The buildings are 60% to 90% completed offsite at a factory-controlled environment, and transported and constructed in the final building website. This can comprise the whole construction or be parts or subassemblies of larger structures. Oftentimes, modular builders work with conventional general contractors to exploit the tools and advantages of each type of construction. Finished modules are transported to the construction site and assembled by means of a crane. Placement of the modules can take from several hours to several days.
Material for stick built and modular homes will be the same. First, modular homes don't have axles or a metal framework, meaning they are typically transported on flat-bed trucks. Modular buildings have to conform to all applicable regional building codes, while doublewides and mobile homes have metal beneath framing. Doublewides and mobile houses made in the United States are required to conform to federal codes governed by U.S. Department of Housing and Urban Development.