| Open-Panel Wall System | Structural wall frames, usually with sheathing; insulation, wiring, plumbing, and interior finishes are generally added or completed on site. | Panels are positioned and fastened to the prepared foundation. The building team completes insulation, services, air and water control layers, and interior finishes. | Custom homes, additions, and projects where design flexibility or local trade involvement is a priority. | Coordinate panel dimensions with the floor plan, foundation, and window openings. Weather protection during construction is important because cavities are typically open. |
| Closed-Panel Wall System | Factory-assembled wall sections that may include insulation, sheathing, a weather-resistive layer, windows, or interior finishes, depending on the specification. | Panels are lifted into place, connected, and sealed at joints. Remaining services, finishes, and exterior details are completed according to the design. | Projects seeking a higher level of factory completion and a shorter period of exposed framing on site. | Confirm exactly which layers and services are included. Plan transport, lifting access, panel weights, and precise connections between sections. |
| Panelized Roof System | Factory-built roof panels or framed roof sections, sometimes supplied with sheathing and specified insulation layers. | Sections are lifted onto the supporting structure, secured, and joined. Roofing, flashing, and any unfinished insulation or interior layers are completed as specified. | Homes with repetitive roof geometry, vaulted ceilings, or projects where faster roof enclosure is useful. | Roof pitch, spans, structural loads, crane access, and connection details must be coordinated with the structural design and local code requirements. |
| Panelized Floor System | Factory-made floor cassettes or framed panels, which may include joists, sheathing, and openings for stairs or services. | Panels are set on the foundation or supporting walls, fastened, and joined. Service penetrations and finish flooring are completed as required. | Homes with multiple levels, raised floors, or layouts that benefit from accurately manufactured floor sections. | Check bearing points, floor openings, service routes, and tolerances before fabrication. The foundation must match the panel layout. |
| Structural Insulated Panel (SIP) System | Structural panels made with an insulating foam core bonded between structural facings; panels can be used for walls and roofs. | Panels are joined with specified splines and fasteners, then seams and penetrations are sealed. Interior and exterior finishes are installed afterward. | Energy-conscious homes with relatively straightforward shapes and carefully coordinated openings. | Joint sealing, ventilation design, moisture management, and service routing need early attention. Panel engineering and installation must follow the approved system details. |