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modular classrooms
Modular classrooms (sometimes called "temporary" or "relocatable" classrooms) are prefabricated buildings, constructed off-site in a factory, which are used as classrooms. Most modular classrooms are portable, but permanent modular classrooms are becoming a common option. Modular classrooms are built to the same codes and specifications as site-built structures. Modular classrooms are frequently used by schools in need of additional rooms, or in emergencies.
==Benefits==
Modular construction is performed in a factory, where workers and materials are protected from the weather. The efficiencies of assembly-line techniques and reduced construction waste are a benefit. The greatest advantage of modular construction is in time savings (typically 30 to 60 percent faster than site-built construction). A modular project does not need to wait until the foundation has cured before construction begins. Since modular buildings are constructed off-site, modular units can be built and prepared for shipment before the foundation is poured. The nearly finished units arrive on site to be crane-set when the foundation is ready. The units are then "mated", and finished on-site. Exterior finishes can be applied if the buildings are for long-term (or permanent) use.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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