Composite Wall Panel System with Thermally Efficient Edge Extrusion
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Solution Overview
Problem
Conventional exterior building envelope construction methods, such as stick-built, unitized curtain wall, and panelized wall systems, face issues like high labor costs, variable quality control, low thermal performance, and structural limitations, including poor R-Values and thermal bridging, which affect energy efficiency and durability.
Innovation Solution
A unitized wall panel assembly with a composite wall system that distributes loads through composite action between panels and studs, featuring thermally efficient joints and extrusions, eliminating the need for sealants at panel joints, and allowing for adjustable mounting and reduced wall depth, thereby enhancing thermal performance and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional unitized curtain wall construction is used, then assembly quality is improved through controlled shop manufacturing, but thermal performance deteriorates with R-Values between 1 and 3 due to thermal bridging through aluminum mullions
Solution Approach 1:
The patent removes the aluminum mullions that cause thermal bridging from the curtain wall assembly. Instead, it uses a different structural support system that does not create thermal bridges, thereby extracting the harmful thermal conduction path while maintaining the beneficial shop assembly quality
Solution Approach 2:
The patent employs composite material construction with insulated panels that combine structural and insulation functions. This composite approach allows achieving high thermal performance (R-19 or more) while maintaining manufacturing precision through controlled shop assembly of pre-fabricated units
2Manufacturing precision
If conventional panelized wall construction is used, then manufacturing quality is improved through controlled environment production, but wall depth increases to 12 to 18 inches and weight increases
Solution Approach 1:
The patent divides the wall assembly into thin, pre-fabricated panel segments that can be produced in a controlled shop environment. These segmented panels are then assembled on-site to form the complete wall system, achieving high manufacturing precision without requiring deep individual wall sections
Solution Approach 2:
The patent uses nested construction where insulation panels are placed within thin structural frames, creating a compact multi-layer assembly. This nesting approach achieves the required thermal performance and structural integrity within a reduced overall wall depth compared to conventional panelized systems
3Manufacturing precision
If conventional panelized wall construction is used, then manufacturing quality is improved through controlled environment production, but R-Value remains low between 4 and 12
Solution Approach 1:
The patent uses composite material construction with insulated panels that combine structural and insulation functions. This composite approach allows achieving high thermal performance (R-19 or more) while maintaining manufacturing precision through controlled shop assembly of pre-fabricated units
Solution Approach 2:
The patent transitions from two-dimensional panel assembly to a three-dimensional composite structure that integrates insulation, structural support, and cladding in multiple layers. This dimensional approach maximizes thermal performance within the available wall depth
4Adaptability or versatility
If stick-built construction is used, then customization is improved through craftsmanship, but construction speed deteriorates and labor costs increase
Solution Approach 1:
The patent applies preliminary action by pre-assembling complete curtain wall units in a controlled shop environment before delivering them to the construction site. This pre-fabrication maintains customization capabilities while dramatically accelerating on-site installation speed and reducing labor requirements
5Manufacturing precision
If conventional unitized curtain wall is used, then assembly quality is improved through shop manufacturing, but wall size is limited to approximately five feet in width
Solution Approach 1:
The patent segments the large wall assemblies into manageable modular units that can be manufactured with high precision in the shop. These segmented units are then joined on-site to create walls of any required size, overcoming the five-foot width limitation while preserving manufacturing quality
Data Source
AI summary
A composite wall system is provided that employs a single thermally efficient edge extrusion. The present composite wall system does not use sealant at panel joints, is relatively lighter, and experiences substantially little to no thermal bridging found in conventional systems. It provides for an adjustable attachment system to allow panels to be adjusted to maintain optimal spacing along the panel margins and panel seal.