Panelized homes are constructed on site using prefabricated panels. The most common type of panel is a SIP or structurally insulated panel. These feature a highly insulative material which is sandwiched between two durable flat panels. The panel boards can be a variety of materials such as plywood, fiberglass, or polymer blends.
SIPs are gaining recognition in the construction industry due to their versatility and ease of use. They can be used to cost effectively construct a building for virtually and use and construction times are greatly reduced over traditional building methods.
The cost per square foot for panelized homes is typically higher than mobile homes (primarily because mobile homes are incredibly basic) but less than a modular home. Because you can hold panels for multiple homes on one truck, whereas you can only hold one per truck with mobile homes and only part of a house with modular homes, panelized homes are the building style of choice for most remote locations which require many houses or other buildings to be built quickly.
SIPs are also gaining recognition on the green front since their design allows for them to be highly insulated and therefore energy efficient. They can also be made of recycled materials and the on-site waste from construction of a new house is far less than with lumber or any other traditional building material.