Insulated Building Panels with Graphite EPS Core
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Solution Overview
Problem
Building envelopes face challenges in minimizing heat transfer due to thermal bridges and the need for extensive insulation, particularly in foundations and floors, which increases construction complexity and costs.
Innovation Solution
The use of prefabricated, modular insulated building panels with an expanded polystyrene core containing graphite, internal steel studs, and sheathings made of materials like cement board or plywood, installed below the frost line to create a thermal break and reduce insulation requirements for floors and foundations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional building envelope construction is used with separate insulation layers and thermal bridges, then structural integrity is maintained, but heat transfer increases and energy efficiency decreases
Solution Approach 1:
The patent combines the structural framing members and insulation material into a single integrated panel assembly. The insulation is positioned between the sheathing and the framing members within the same panel, eliminating the need for separate insulation installation steps and reducing thermal bridges at connection points.
Solution Approach 2:
The panel uses composite construction combining different materials (sheathing, insulation, framing members) into a unified assembly with superior thermal performance. The layered composite structure creates continuous thermal breaks that reduce heat transfer while maintaining structural integrity.
2Loss of energy
If extensive insulation is added to floors and foundations to minimize thermal bridges, then heat transfer is reduced, but construction complexity and costs increase
Solution Approach 1:
The patent moves the insulation function from horizontal floor and foundation applications to vertical wall panels that extend below the frost line. This dimensional shift allows the insulation to protect the foundation indirectly through thermal break provision rather than requiring direct foundation insulation.
Solution Approach 2:
The insulated panel assembly acts as an intermediary thermal break between the interior and foundation areas. By installing these panels vertically below the frost line, the system provides thermal isolation without requiring extensive horizontal insulation layers on floors and foundations.
3Productivity
If modular prefabricated panels are used to simplify construction, then installation speed increases, but manufacturing and transportation complexity increases
Solution Approach 1:
The building envelope is divided into modular panel segments that can be manufactured separately and assembled on-site. Each panel is a self-contained unit with standardized dimensions and integrated components, enabling rapid installation while distributing manufacturing complexity across multiple identical units.
Solution Approach 2:
The panels are pre-assembled with insulation and framing members attached before delivery to the construction site. This preliminary fabrication of subassemblies allows for quality control and efficiency in manufacturing while simplifying on-site construction to primarily assembly operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for efficient thermal insulation of building walls, reducing heat transfer and associated costs by eliminating the need for extensive foundation insulation and simplifying construction with modular, quickly installable panels.
Implementation Method 1
the insulated core is comprised of expanded polystyrene (EPS) that includes graphite
Implementation Method 2
Heat is transferred between the interior environment and the exterior environment through the building envelope. To minimize heat transfer through the building envelope, the building envelope includes insulating elements to minimize thermal conduction.
Data Source
AI summary
A system for constructing an insulated building wall, includes a plurality of building panels, wherein a first level of building panels are installed below a frost line and the panels are installed adjacent and attached to other panels. The panels each have an insulated core attached between an interior sheathing and an exterior sheathing. The insulated core may be expanded polystyrene including graphite and may contain one or more steel studs. Each of the panels may be rectangular having two female edges and two male edges, wherein a male edge and a female edges of adjacent panels are for cooperatively attaching using fasteners. The walls may also have a top plate and a bottom plate, and may have strapping and cladding attached to the exterior sheathing.