... 1)One floor-The first floor need be flat before assemble house(2) two or three ... of heat-insulation. 5) Could stand firmly over 20 years. 6) Light weight, convenient for shipment and ... , virious colors and shapes for outer and inner roof panel and wall panel. 8) Various designs available ... : 1) Dimension: Length, width, height, eave height, roof pitch, etc. 2) Doors and windows: Dimension, quantity, ...