Window Liner Segmentation for Prefabricated Wall Panels
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Solution Overview
Problem
Pre-fabricated building components, especially those with windows, are heavy and prone to damage during transportation and installation, and existing window installations do not effectively ensure a proper seal or minimize thermal conductivity.
Innovation Solution
A window installation system featuring a pre-fabricated window liner with a water-resistant and low thermal conductivity coating, which can be easily installed in a horizontal orientation and includes a flange for secure integration into a wall panel, reducing weight and risk of damage during transport, and providing a barrier against water, air, and thermal energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If windows are installed in pre-fabricated components, then the aesthetic and functional quality of the building is improved, but the weight increases and the components become prone to breakage during transport
Solution Approach 1:
The window assembly is segmented from the wall panel during transport and installation. The window is installed in a separate liner that is attached to the wall panel only at the final installation stage, dividing the heavy integrated structure into lighter separable components that can be handled independently
Solution Approach 2:
The window installation transitions from a static integrated state to a dynamic separable state during transport, then returns to a fixed integrated state at installation. The liner is temporarily detached during movement to reduce weight and risk, then permanently attached to achieve the sealed final configuration
2Reliability
If windows are installed in pre-fabricated components, then the building functionality is improved, but the components become difficult to move and manage during transport and installation
Solution Approach 1:
The window assembly is segmented from the wall panel during transport and installation. The window is installed in a separate liner that is attached to the wall panel only at the final installation stage, dividing the heavy integrated structure into lighter separable components that can be handled independently
Solution Approach 2:
The liner is designed to be installed in a horizontal orientation on a workbench, eliminating the need to work against gravity during assembly. This creates an equipotential working condition where the installer can assemble the window-liner unit without lifting or positioning heavy components vertically
3Reliability
If traditional window installations are used, then the installation process is simple, but the seal and fit between window and wall opening cannot be properly ensured
Solution Approach 1:
The liner is pre-assembled with the window in a controlled horizontal environment where proper alignment and sealing can be ensured before installation. The liner itself is pre-formed with integrated sealing surfaces and attachment features that guarantee proper fit when installed in the wall panel opening
Solution Approach 2:
The liner acts as an intermediary component between the window and the wall panel. It provides a pre-formed interface that ensures proper sealing and attachment, mediating the connection between the window frame and the wall opening while maintaining consistent seal quality
4Reliability
If traditional window installations are used, then the construction process is straightforward, but thermal conductivity across the wall thickness is not minimized
Solution Approach 1:
The wall panel employs composite construction with layers of different thermal properties. The liner is coated with water-resistant materials that also have low thermal conductivity, and the wall panel integrates insulating members and sheathing layers that work together to create a comprehensive thermal barrier while maintaining structural integrity
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
The system allows for easier and safer handling of pre-fabricated wall panels by reducing the weight and risk of window breakage, while ensuring a tight seal and minimizing thermal energy conduction, meeting stringent air infiltration standards.
Implementation Method 1
The liner is coated with a water barrier and/or is constructed from water-resistant or water-proof materials
Implementation Method 2
The liner is coated with a water barrier and/or is constructed from water-resistant or water-proof materials that may also have low thermal conductivity
Data Source
AI summary
A window installation and a wall panel and methods for construction thereof. The window installation includes a window liner in which a window unit can be installed. The window liner includes jambs, a header, and a sill that circumscribe the window unit and an exterior flange that depends outwardly from external edges thereof. The wall panel is a prefabricated panel that includes framing with sheathing and insulating members disposed on an exterior surface thereof and forms an opening in which the window liner is received. An external sheathing of the wall panel is formed with a larger opening dimensioned to receive the exterior flange of the window liner. The window liner and window unit can be removed from the wall panel to ease movement and transport of the wall panel and to reduce risks of breaking the window unit during manufacture and transport.