Abstract: An insulated panel structure and method of making the same are provided for enhancing the thermal efficiency in a building structure. The insulated panel structure includes a foam member, multiple brace members, and a reflective layer. The multiple brace members are coupled to the foam member to provide strength to the foam member and structural integrity to the panel structure. Such foam member is configured to resist conductive heat flow therethrough. Further, the reflective layer includes an interior facing surface and an exterior facing surface. The reflective layer is positioned alongside an interior side of the foam member such that the exterior facing surface faces the interior side of the foam member. With this arrangement, the interior facing surface is configured to reflect radiation heat toward an interior of the building structure and the exterior facing surface is configured to reflect radiation heat toward an exterior of the building structure.