Flexibility. One can add to a modular construction, including creating high rises. When the demands alter, modular buildings may be disassembled and the modules emptied or refurbished to their next usage reducing the requirement for raw materials and minimizing the total amount of energy expended to make a building to meet the new need. Essentially, the entire building could be recycled in some cases.
Improved Air Quality - A lot of the indoor air quality issues identified in new construction result from elevated moisture levels in the framing materials. Since the modular structure is substantially finished in a factory-controlled setting using abrasive materials, the potential for elevated levels of moisture being trapped inside the new structure is removed.
Modular buildings have been argued to have benefits over conventional buildings, for many different reasons.
Indoor construction. Assembly is independent of weather, which can boost work efficiency and avoids damaged building material.
Modular buildings can also contribute to LEED requirements in any kind site-built construction may, and can even supply an edge 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 categories from the International Green Construction Code.
Speed of construction/faster return on investment. Modular construction allows for the building and the site work to be performed concurrently. According to some substances, this can decrease the overall completion schedule by up to 50%. This reduces labor, financing and supervision expenses. To save even more time and money, the majority of engineering and design disciplines are a part of the manufacturing procedure. During site-built construction, walls can't be placed until flooring are in position, and ceilings and rafters cannot be added until walls are erected. On the flip side, with modular construction, walls, floors, ceilings, and rafters are all built at the same time, then brought together at the same factory to form a building. This procedure can allow modular building times of half that of conventional, stick-built structure.
Low waste. With the very same plans being continuously built, the manufacturer has records of exactly what quantity of materials are needed for a given job. Together with the consistency, most builders can design systems which use common lengths of lumber, wallboard, etc.. cut things with maximum efficiency, or have the ability to order exceptional spans in bulk. While waste from a site-built dwelling may typically fill several large dumpsters, construction of a modular dwelling generates much less waste. As stated by the UK group WRAP, up to a 90% decrease in substances can be accomplished through using modular structure.
Quality. Mixing traditional construction methods, quality manufacturing and third-party agencies that offer random inspections, testing, and certification services for quality control, commercial modular structures are made in strict compliance with appropriate local, state, and national rules and regulations. On account of the need to transport modules to the last website, each module has to be built to independently withstand travel and installation prerequisites. Thus the final module-to-module assembly of independently durable elements can yield a final product that is stronger than site-built constructions. SIPs panels are a light yet lasting combination of panel board and either closed-cell polyurethane (PU) or expanded polystyrene (EPS) insulating foam. They also offer superior damp and cold resistance when compared to wood and other materials, and are resistant to both compression shrinking and cold bridging.  Modular units might also be designed to fit in with outside aesthetics of any existing construction and modular units once constructed can be almost indistinguishable from a site-built structure.
Ability to support remote locations. Especially in countries where prospective markets may be found far from industrial facilities, such as Australia, there may be a lot higher costs to construct a in-house property in a distant area or an area experiencing a construction boom like mining towns. Modular buildings are also beneficial in providing medical and sanitary facilities where space, time, and funds are an issue.
Environmentally friendly construction process. Modular construction reduces waste and site disturbance compared to site-built structures. The controlled environment of the factory allows for more accurate construction when allowing the additional materials to be recycled in-house.