Offset Cap-Layer Roofing Shingles for Solar Module Integration
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Solution Overview
Problem
Existing roofing shingles do not effectively integrate photovoltaic systems, lacking a design that allows for seamless installation and aesthetic matching with solar shingles.
Innovation Solution
A roofing shingle system comprising a core layer and a cap layer, where the cap layer is offset from the core layer, featuring a pattern on its surface and an extended portion for overlaying side laps, designed to be installed proximate to photovoltaic modules for a cohesive appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional roofing shingles are used, then installation is simple and cost-effective, but they cannot integrate photovoltaic systems seamlessly
Solution Approach 1:
The shingle is divided into distinct functional layers: a core layer providing structural support and a cap layer providing weather protection and photovoltaic integration capability. This segmentation allows each layer to be optimized independently for its specific function while maintaining overall system simplicity.
Solution Approach 2:
The cap layer serves multiple functions simultaneously: it provides weather protection, creates offset configurations for photovoltaic module integration, and forms side laps that enable seamless installation alongside solar shingles. This multi-functionality achieves photovoltaic integration without proportionally increasing structural complexity.
2Adaptability or versatility
If offset configuration is added to enable photovoltaic integration, then adaptability improves, but manufacturing complexity increases
Solution Approach 1:
The offset configuration between the cap layer and core layer is pre-established during manufacturing rather than requiring precise field installation. The cap layer is positioned with predetermined offsets relative to the core layer, ensuring consistent photovoltaic integration capability without demanding high precision during installation.
Solution Approach 2:
The offset configuration is applied locally at specific regions of the shingle where photovoltaic integration is needed, rather than requiring uniform precision across the entire shingle structure. This allows manufacturing focus to be concentrated on critical offset zones.
3Shape
If extended portions and side laps are incorporated, then visual coherence improves, but installation complexity increases
Solution Approach 1:
The extended portions and side laps are integrated into the cap layer design, merging the aesthetic function of visual coherence with the practical function of weather protection. This unified design allows installation workers to achieve both visual coherence and proper weather sealing in a single installation process rather than requiring separate steps.
Data Source
AI summary
A system includes a plurality of roofing shingles having a core layer and a cap layer, with first and second ends of the cap layer offset from respective first and second ends of the core layer. The cap layer includes a first surface and a pattern on the first surface. A side lap extends from the second end of the cap layer to the second end of the core layer and an extended portion is located at the first end of the cap layer. The extended portion of a first one of the roofing shingles overlays the side lap of a second one of the roofing shingles. The system further includes a plurality of photovoltaic modules, each of the plurality of photovoltaic modules include at least one solar cell.