Multi-Element Roofing Panel Interlocking Water Management
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Solution Overview
Problem
Existing exterior siding and roofing systems lack effective interlocking mechanisms that prevent water infiltration and provide adequate structural rigidity, especially under wind and temperature extremes, while maintaining a natural aesthetic appearance.
Innovation Solution
A multi-element panel system with interlocking features, including a water trough, side lap, and keyways, that allows for continuous vertical and horizontal adjustment, simulates the appearance of natural materials like slate, and incorporates a serpentine water channel to direct water flow, ensuring water does not reach the fasteners and providing structural support without additional fasteners through the lower edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional siding or roofing systems are used, then installation is simple, but water infiltration occurs and structural rigidity is insufficient
Solution Approach 1:
The panel is divided into multiple functional segments: upper portion with water trough, lower portion with water channel, side lap, and keyways. Each segment performs a specific function in the water management and structural support system, allowing complex water infiltration prevention through modular functional division.
Solution Approach 2:
Multiple functions are merged into the panel structure: water diversion (water trough and water channel), structural interlocking (side lap and keyways), and aesthetic simulation (faces simulating natural materials) are combined into a single integrated panel system that eliminates the need for separate components.
2Strength
If traditional systems are used, then manufacturing is simple, but structural rigidity under wind and temperature extremes is insufficient
Solution Approach 1:
The panel structure is segmented into reinforced portions (water trough, water channel, side lap, keyways) that provide structural rigidity and flexible portions that allow for thermal expansion and contraction, enabling the panel to withstand wind and temperature extremes while maintaining strength.
Solution Approach 2:
The panel utilizes composite construction with multiple material layers and integrated structural elements (water trough, water channel, side lap, keyways) that work together to provide enhanced structural rigidity while maintaining the ability to simulate natural materials like slate, wood shakes, or ceramic tiles.
3Reliability
If additional fasteners are used to prevent water infiltration, then water protection improves, but the aesthetic appearance and installation simplicity deteriorate
Solution Approach 1:
The panel's interlocking features (side lap and keyways) and water management components (water trough and water channel) work together to provide water protection without requiring additional fasteners through the lower edge, allowing the panel to be self-sufficient in providing both structural and waterproofing functions during installation.
Solution Approach 2:
The waterproofing function is merged into the panel's structural features, where the water trough, water channel, and side lap serve dual purposes: providing structural support and simultaneously directing water flow away from the panel, eliminating the need for separate waterproofing fasteners and maintaining installation simplicity.
4Shape
If panels simulate natural materials, then aesthetic appearance improves, but functional performance (water infiltration prevention) worsens
Solution Approach 1:
The panel surfaces (faces) are designed with local quality variations that simulate natural materials like slate, wood shakes, or ceramic tiles, while the underlying structure (water trough, water channel, side lap, keyways) provides enhanced water infiltration prevention functionality, allowing each area of the panel to optimize for its specific purpose.
Solution Approach 2:
The panel combines aesthetic surfaces that simulate natural materials with functional composite structures (water trough, water channel, side lap, keyways) that provide superior water protection, achieving both aesthetic appearance and functional performance through integrated composite construction.
Data Source
AI summary
A multi-element panel system configured for attachment to a mounting surface includes at least two panels. The panels each have an upper portion oriented upward and a lower portion oriented downward, relative to the mounting surface. A plurality of faces are formed on the panels and a plurality of keyways are formed between the faces. The keyways are recessed toward the mounting surface from the faces. The panels have a water trough, which has a planar intersection with the faces, formed on an exterior side of the upper portion, and a water channel extending between the upper and lower portions of one side of the panel. The panels have a side lap extending between the upper and lower portions on the opposite side of the panel from the water channel. The side lap of one of the panels overlaps the water channel of another, horizontally adjacent, panel.