Rigid Foam Raised Floor Structure Without Wood Supports

The patent uses composite materials by combining rigid foam insulation boards with wood framing members to create a hybrid construction system. The foam boards are attached to the wood framing, creating a composite assembly that provides both structural support and insulation while protecting the wood from direct exposure to moisture and pests. This composite approach allows the wood to serve its structural function while the foam provides protection and thermal performance.

The rigid foam insulation boards serve as an intermediary layer between the wood framing and the external environment. While foam itself can be combustible, when properly installed and covered with fire-resistant materials like gypsum board or cement board, it creates a protective barrier that slows fire spread and protects the underlying wood structure. The foam layer acts as a thermal barrier that delays heat transfer to the wood framing during fire exposure.

The patent merges two separate functions into a single integrated system: structural support and thermal insulation. By attaching rigid foam insulation boards directly to the wood framing members, the system combines the load-bearing function of the wood with the thermal performance of the foam. This merging eliminates the need for separate insulation installation and creates a unified assembly that provides both structural and thermal benefits.

The patent employs lightweight wood framing members that are treated or protected rather than using heavy concrete structures. The wood framing, when properly protected with fire-resistant coatings and moisture barriers, provides sufficient structural support without the excessive weight of concrete. This approach uses lighter, more easily handled materials that can be quickly erected and replaced if needed, rather than permanent heavy concrete construction.

The patent segments the insulation system into separate rigid foam boards that are attached to individual framing members, rather than using a single complex pre-fabricated component. This segmentation allows for modular installation where standard-sized foam boards can be cut and attached to each stud or beam independently. The segmentation simplifies manufacturing by using standard foam board production rather than requiring custom-molded complex shapes, while still achieving the desired insulation and fire resistance performance.