Modular buildings, also called prefabricated homes or precision built homes, are developed to equivalent or higher standards as on-site stick-built houses. The construction method is known as permanent modular structure.
Modular buildings and modular houses are prefabricated buildings or houses which consist of recurrent sections called modules. "Modular" is a building method that involves constructing sections away from the construction site, then sending them to the planned site. Setup of these prefabricated sections is finished on site. Prefabricated sections are sometimes placed utilizing a crane. The modules can be set side-by-side, finishing, or stacked, allowing a variety of configurations and styles.
Permanent modular buildings are designed to meet or surpass the exact same building codes and standards as site-built structures and also the same architect-specified materials utilized in conventionally built buildings are used in modular building projects. PMC may have as many stories as construction codes allow. Unlike relocatable buildings, PMC structures are meant to remain in one place for the duration of their life.
Modular buildings may be used for long-term, temporary or permanent facilities, including building camps, universities and schools, military and civilian housing, and industrial centers. Modular buildings are employed in rural and remote areas where traditional construction might not be reasonable or possible, for example, the Halley VI accommodation pods used for a BAS Antarctic expedition.  Other uses have included churches, healthcare centers, retail and sales offices, quick food restaurants and cruise ship construction. They may also be used in areas that have weather issues, such as hurricanes.
The buildings are 60% to 90% finished offsite in a factory-controlled environment, and transported and assembled at the last construction site. This can comprise the entire building or be components or subassemblies of bigger structures. In many cases, modular contractors work with conventional general contractors to exploit the resources and advantages of each form of construction. Completed modules are hauled to the construction site and constructed by a crane. Placement of the modules can take from several hours to several days.
The entire process of modular construction puts significance on the design stage. This is really where practices such as Design for Manufacture and Assembly (DfMA) have been utilized to make certain that assembly tolerances are controlled throughout fabrication and assembly on site. It is vital that there's sufficient allowance in the layout to enable the meeting to take up any"idle" or misalignment of components. This is very unlike on-site construction where the tradesman can often create the part to suit any specific installation.
Building is offsite, using lean production techniques to prefabricate solitary or multi-story buildings in deliverable module sections. Permanent Modular Construction (PMC) buildings are manufactured in a controlled environment and can be constructed of wood, steel, or concrete. Modular components are typically constructed inside on assembly lines. Modules' structure may take as little as ten days but more often one to three weeks. PMC modules could be incorporated into site constructed projects or stand alone and can be delivered with MEP, fixtures and interior finishes.
Material for pole built and modular homes will be the same. Modular homes aren't doublewides or mobile homes. To begin with, modular houses don't have axles or a metal framework, meaning they are typically hauled on flat-bed trucks. Modular buildings must conform to all applicable local building codes, whereas doublewides and mobile homes have metal beneath framing.