Quality. Mixing traditional construction methods, quality manufacturing and third party agencies that provide arbitrary inspections, testing, and certification services for quality management, commercial modular structures are built in strict compliance with appropriate local, state, and national regulations and codes. On account of the requirement to transport modules to the final website, each module must be built to independently withstand travel and setup prerequisites. Thus the closing module-to-module assembly of independently durable components can yield a last product that is stronger than site-built structures. Modular buildings often utilize Structural Insulated Panels (SIPs) in construction, which offer a range of advantages over traditional building materials. SIPs panels are a mild yet lasting mix of panel board and closed-cell polyurethane (PU) or expanded polystyrene (EPS) insulating foam. They also provide exceptional damp and cold immunity when compared to timber and other materials, and are immune to both compression shrinking and cold bridging.  Modular units might also be designed to match in with external aesthetics of any present building and modular units once assembled can be almost indistinguishable from a site-built construction.
Speed of construction/faster return on investment. Modular construction permits for the building and the site work to be performed concurrently. According to some materials, this can decrease the overall completion schedule by as much as 50%. This reduces labour, financing and supervision expenses. To save even more time and money, nearly all engineering and design disciplines are part of the production procedure. During site-built structure, walls can't be set until floors are set up, and ceilings and rafters cannot be added until walls have been erected. On the other hand, with modular construction, walls, floors, ceilings, and rafters are all built at the exact same time, and then brought together at the exact same factory to form a building. This process can enable modular building times of half that of traditional, stick-built construction.
Indoor construction. Assembly is independent of weather, which can increase work efficiency and avoids damaged construction material.
Ability to support remote locations. Especially in countries where potential markets may be found far from industrial centers, such as Australia, there may be much higher prices to construct a site-built house in a remote area or a place experiencing a construction boom such as mining towns. Modular buildings can also be beneficial in providing medical and sanitary facilities where space, time, and funds are a problem.
Environmentally friendly building procedure. Modular construction reduces waste and site disturbance compared to site-built structures. The controlled environment of the mill allows for more precise structure when permitting the extra stuff to be recycled in house. 
Modular buildings may likewise contribute to LEED conditions in any kind site-built structure can, and may even supply an advantage in the areas of Sustainable websites, Energy and Atmosphere, Materials and Resources, and Indoor Environmental Quality. Modular construction may also provide an edge in similar classes in the International Green Construction Code.
Flexibility. An individual can add to your modular building, such as creating high rises. When the needs change, modular buildings may be disassembled and the modules relocated or refurbished for their next usage reducing the requirement for raw materials and minimizing the total amount of energy expended to make a construction to fit the new demand. In essence, the entire building could be recycled in some instances.
Low waste. With the same programs being continuously built, the producer has records of exactly what amount of substances are needed for a specified job. With the consistency, builders can design systems that use common lengths of lumber, wallboard, etc., cut things with maximum efficacy, or have the ability to order special spans in bulk. While squander from a site-built dwelling may typically fill several large dumpsters, building of a modular house creates much less waste. As stated by the UK group WRAP, up to a 90% decrease in materials can be accomplished through the use of modular structure. Materials minimized contain: wood pallets, shrink wrap, cardboard, plasterboard, wood, concrete, bricks, and cement.
Modular buildings have been argued to have benefits over conventional buildings, for many different factors.
Improved Air Quality - Many of the indoor air quality issues identified in new structure result from high moisture levels in the farming materials. Since the modular construction is substantially completed in a factory-controlled setting using abrasive materials, the potential for elevated levels of moisture being trapped inside the new construction is eliminated.