Composite structural panel

Abstract

An improved composite structural panel and method of fabrication are provided. In one embodiment, the panel generally includes two outer layers or sheets arranged in substantially facing relationship to each other and an intermediate layer spacing the outer layers apart. The intermediate layer includes a generally rigid stiffening or reinforcing core that preferably is bonded to outer layers to form a unified composite structure. In one embodiment, the core has an open structure defining a plurality of open cells 15. An insulating material is preferably disposed in the cells, and in one embodiment is a rigid foam that structurally reinforces the core 14 and strengthens the panel.

Description

BACKGROUND OF THE INVENTION

[0001] The present invention generally relates to modular structural panels, and more particularly to an improved structural panel, joint, and method of fabricating the same for constructing interconnected panel systems.

[0002] Modular building components such as composite structural panels with the ability to be interconnected have been used to construct various types of residential, commercial, and industrial structures. For example, the panels may be interconnected to create walls, floors, ceilings, and partitions of a building or various types of enclosures within a building.

[0003] One type of composite panel, commonly known as structural insulated panels (SIPS), has an insulating core that is disposed between an exterior and interior facing sheets. In one method of fabricating a composite panel, a preformed rigid sheet of insulating material such as polystyrene or urethane is sandwiched between the facing sheets. In another type of fabrication used,...

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