Hybrid ICF Wall Assemblies Reducing Thermal Bridging
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Solution Overview
Problem
Current low- and mid-rise building construction methods, such as Stick-Built and Structural Frame systems, are optimized for cost and ease of erection but fail to meet 21st-century imperatives of reducing Embodied Carbon and Operational Energy usage due to high material intensities and thermal bridging issues.
Innovation Solution
A structurally hybrid system combining inter-dependent Panelized construction with Column and Beam Framing, optimizing material disposition to minimize thermal bridging and reduce material use intensity, allowing for smaller, lighter components that can be manufactured and assembled locally without industrial-scale machinery, thereby reducing carbon footprint and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If Stick-Built or Structural Frame systems are used, then ease of erection and cost are improved, but Embodied Carbon and Operational Energy usage increase
Solution Approach 1:
The patent employs composite construction by integrating insulated concrete forms (ICFs) as a hybrid system that combines structural framing with thermal insulation materials. This composite approach allows the wall assembly to function as both structural support and thermal barrier, eliminating the need for separate insulation layers and reducing thermal bridging through the integration of insulating materials within the concrete form structure.
Solution Approach 2:
The patent changes the structural parameters by using larger, heavier ICF panels that can be manually handled and assembled without mechanical equipment. This parameter change in component size and weight allows for simplified assembly procedures while maintaining structural integrity, thereby reducing embodied carbon from manufacturing and assembly operations.
2Productivity
If Panelized or Modular construction is used, then construction speed is improved, but material intensities and thermal bridging increase
Solution Approach 1:
The ICF panel system integrates structural concrete forms with thermal insulation materials into a single composite component. This integration ensures that insulation is built-in during manufacturing, eliminating gaps and thermal bridges that occur in conventional panelized construction where insulation is added separately, thereby reducing energy loss while maintaining construction speed.
Solution Approach 2:
The patent merges the structural framing function and thermal insulation function into a single integrated ICF panel system. By combining these functions, the design eliminates the thermal bridging problems associated with separate structural and insulation components, while the modular panel design maintains rapid assembly capabilities.
3Ease of manufacture
If larger Panels and Modules are used, then economies of scale are improved, but transport limitations and Embodied energy increase
Solution Approach 1:
The patent optimizes panel dimensions and weight parameters to achieve a balance between economies of scale and transportability. The ICF panels are designed to be large enough to benefit from standardized manufacturing processes but small enough to be manually handled and assembled, eliminating the need for heavy transport equipment and reducing embodied energy from logistics.
Solution Approach 2:
The ICF panel system is designed to be self-assembling through its interlocking geometry and manual handling capabilities. The panels incorporate features that allow workers to assemble them without mechanical equipment, reducing the embodied energy from assembly operations while maintaining the efficiency of standardized manufacturing processes.
Data Source
AI summary
Disclosed is a system and method for constructing low- and mid-rise buildings combining structurally inter-dependent components of conventional Panelized construction and conventional Structural frame construction systems to achieve greater efficiencies of overall building energy use and structural performance than conventional applications of either system alone allows.