A system and method is provided for a cement building which may utilize cement floor panels, cement wall panels, cement roof panels, cement joist panels, and cement roof support panel. Although each type of cement panel will vary in construction depending on the function, preferably each panel comprises a synthetic foam core and a cement outer shell. Molds may be utilized at the building site or offsite to create the panels which are then secured together to form the building. Once a panel is raised, it is substantially complete thereby reducing time required to complete the building. Floor panels may comprise an internal cement arch to provide a sturdy panel that provides a sturdy support for loads placed thereon.