Prefabricated Wall Panels with Integrated Barriers
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Solution Overview
Problem
Conventional construction techniques for residential, light commercial, and multifamily buildings are labor-intensive, expensive, and limited in architectural style, especially when incorporating low energy standards like the Passive House standard, which adds complexity and cost due to multiple construction layers.
Innovation Solution
A prefabricated construction method using modular structural and surface components with integrated air, vapor, and thermal barriers, along with adjustable elements that can be quickly assembled to form complete walls and floors, reducing labor and time through the use of prefabricated joists, oriented strand board, and gasketed layers, and allowing for flexible architectural designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional construction techniques are used to meet low energy standards like Passive House, then energy efficiency is improved, but construction cost and complexity increase due to multiple layers
Solution Approach 1:
The patent combines multiple construction layers (structural framing, insulation, air barrier, vapor barrier, and finish) into a single integrated prefabricated panel. This merging eliminates the need for separate installation of each layer while maintaining all required functions for energy efficiency and building performance.
Solution Approach 2:
The prefabricated panel serves multiple functions simultaneously: it provides structural support through the framing system, thermal insulation through the insulation layer, air sealing through the air barrier, vapor control through the vapor barrier, and aesthetic finish through the exterior and interior surfaces. This multi-functionality reduces the overall number of components needed.
2Adaptability or versatility
If conventional construction with multiple independent trades is used, then building functionality is achieved, but construction time and labor cost increase
Solution Approach 1:
The building is divided into modular prefabricated panels that can be manufactured independently in a controlled factory environment and then assembled on-site. This segmentation allows parallel processing of manufacturing and site preparation, significantly reducing overall construction time while maintaining building functionality.
Solution Approach 2:
All construction layers and components are pre-assembled and pre-coordinated in the factory before delivery to the site. This preliminary action includes installing insulation, air barriers, vapor barriers, and finish materials in the correct sequence, eliminating the need for sequential on-site installation by multiple trades.
3Loss of energy
If sophisticated technology and multiple barriers are added for low energy standards, then energy conservation is improved, but cost and construction time increase
Solution Approach 1:
The patent integrates air barriers, vapor barriers, and insulation into a single prefabricated panel assembly, eliminating the need for separate installation steps for each component. This merging simplifies the manufacturing process while ensuring all energy conservation requirements are met through factory-controlled quality assurance.
4Reliability
If conventional construction layers are used for high standard buildings, then building performance is improved, but the process becomes more complicated and expensive
Solution Approach 1:
The building envelope is segmented into standardized prefabricated panels that maintain consistent quality and performance characteristics. This segmentation allows for simplified construction processes while ensuring reliable building performance through factory-controlled manufacturing of each panel component.
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 method significantly reduces construction costs and labor while enabling efficient implementation of high-standard energy efficiency, such as Passive House standards, by allowing for rapid assembly of energy-efficient building envelopes with integrated insulation, air, and vapor control, and flexible design options.
Implementation Method 1
compress the air barrier gasket on the exterior edge of at least one of the flanges of the first joist to create a seal between the first joist and the joist of the neighboring prefabricated structural component
Implementation Method 2
thermal insulation in at least one space between the central web section of the first joist, the central web section of the second joist and the exterior finish layer
Data Source
AI summary
A construction technique, for example for residential, light commercial and multifamily building construction, involving pre-fabricated elements. The elements include prefabricated structural components and prefabricated surface components. A technique of incremental building includes assembling a building structure using these pre-fabricated elements.