1.Foldable modular houses all wall panels and parts folding package, and simple installation,suitable for a large number of transport in long distance and exports by sea. 2.Foldable modular houses roof, flooring and electricity system are all prefabricated before leaving factory,can short the time from building house to use . 3.Flat pack house the components of the house can be used repeat and it can last 20 years, in use process does not produce any construction garbage. 4. Foldable modular houses the waterproof system on the roof makes the house a good sealing effect.