Structural Insulated Panels (SIPs) SIPs are a sandwiched assembly made of expanded polystyrene in the center, and consisting of Oriented Strand Board (O.S.B.) for the outer shells. Panels are raised as sheets to wrap the frame. Panels are raised as sheets to wrap the frame. Hot knives are used to cut door and window opening. After openings are cut, foam is removed to allow for installation. Hot knives are used to cut door and window opening. After openings are cut, foam is removed to allow for installation.
SIPs are a sandwiched assembly made of expanded polystyrene in the center, and consisting of Oriented Strand Board (O.S.B.) for the outer shells.
