Window Installation Method Using Adjustable Shims and Drainage Channels
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Solution Overview
Problem
The installation of closure assemblies in rough openings is time-consuming and prone to moisture intrusion due to the limitations of wooden shims, which can slip and interfere with sealing, and existing flashing systems are not effective in draining water from the structure.
Innovation Solution
A method involving the formation of an insertion opening in a water-resistant barrier with a moisture barrier and channel assembly for drainage, adjustable shims for precise positioning, and a sealing member with foam material to secure the closure assembly, forming a watershed configuration to divert moisture externally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wooden shims are used for installing closure assemblies, then the closure can be positioned in the rough opening, but the installation process becomes very time consuming and the shims can slip out of place
Solution Approach 1:
The patent uses adjustable shims that are positioned temporarily during installation and then removed after the closure assembly is secured. These shims serve their purpose during positioning and are discarded, eliminating the need for permanent shim installation and reducing overall installation time while maintaining positioning accuracy during the critical installation phase
Solution Approach 2:
The adjustable shims allow for dynamic adjustment of the closure assembly position during installation. The shims can be moved, added, or removed to achieve proper leveling and positioning, and then removed entirely once the closure is secured, providing flexibility without permanent complexity
2Measurement precision
If wooden shims are used to position the closure assembly, then positioning is achieved, but the shims interfere with complete sealing of the window to the rough opening
Solution Approach 1:
The patent removes the shims from the final installation configuration. The shims are used only temporarily during positioning and then removed, allowing the sealing materials to directly contact both the closure assembly and the rough opening without obstruction, thereby eliminating the interference that permanent shims would create with sealing effectiveness
Solution Approach 2:
The shims are applied preliminarily during the positioning phase of installation, perform their function of achieving accurate positioning, and then are removed before the sealing phase. This preliminary use allows positioning accuracy to be achieved without the shims remaining to interfere with the subsequent sealing process
3Object-affected harmful factors
If sealants are applied to prevent water intrusion, then water entry is reduced, but the sealants separate from the closure assembly or wall due to climatic conditions and building movement
Solution Approach 1:
The patent introduces a drainage gap as an intermediary space between the closure assembly and the rough opening. This gap allows water that penetrates the sealing system to be collected and drained away, rather than being trapped against the closure assembly. The gap acts as a buffer that protects the sealant from water pressure and movement stresses, reducing the likelihood of sealant separation
Solution Approach 2:
The patent converts the potentially harmful effect of water penetration into a beneficial drainage system. By providing a controlled gap and drainage path, water that would otherwise cause damage is redirected to drain away from the structure, turning the harmful moisture intrusion into a controlled drainage feature that actually protects the closure assembly and surrounding materials
4Object-affected harmful factors
If flashing is installed to divert water, then water entry is reduced, but the flashing is difficult to install and may hold water against the closure assembly, accelerating decay
Solution Approach 1:
The patent segments the gap between the closure assembly and rough opening into multiple drainage channels or pathways. This segmentation allows water to be diverted at multiple points along the gap, improving water management effectiveness while using simpler materials and methods that are easier to install than traditional flashing systems
Solution Approach 2:
The drainage gap serves as an intermediary space that simplifies water management compared to traditional flashing. Instead of requiring complex flashing installations, the gap provides a natural drainage pathway that is easier to create and maintain, while still effectively diverting water away from the closure assembly
Data Source
AI summary
A closure assembly and a method of installing the closure assembly are provided. A insertion opening is formed in water resistant barrier covering a rough opening that generally corresponds to a perimeter of the rough opening. A drainage system including a channel assembly is installed on a sill surface of the rough opening. The closure assembly is inserted into the rough opening and temporarily secured to the structure. At least one shim carried on the closure assembly is adjusted to level the closure assembly in the rough opening. A sealing member attached to the closure assembly is engaged with the water resistant barrier. A foam material is delivered into at least a portion of a space between perimeter edge surfaces of the closure assembly and inner surfaces of the rough opening to permanently secure the closure assembly within the rough opening.