Expandable houses are made with different material to provide extra function and attractiveness. The basic materials consist of strong rectangular steel tubes that are used as frames upon which other materials are built. Cells and the roofing are insulated panels that guarantee energy efficiency and convenience to people irrespective of the country’s climate. Also, we use green building materials which lessen the ability to increase the carbon foot print to help the cause of humanity. Slotted in this way, these materials guarantee the expandable houses come up to international standards in durability hence can cater for varying stresses from different international markets.