Solar Rail Bracket and Flashing for Leak-Safe Shingle Roof Mounting
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Solution Overview
Problem
The installation of solar panel arrays on shingle roofs is arduous due to the limitations of traditional L-Foot connection brackets, which are difficult to install and do not effectively prevent water leakage, and there is a need for a more secure and easier-to-use support mechanism that allows for precise vertical adjustment of rail guides.
Innovation Solution
A novel bracket system with a U-shaped guide and internal threading, secured to a flashing with a tactile snap mechanism, that includes a recessed path and ridges for secure nut and bolt attachment, and a sealed flashing with a load distribution plate to prevent water leakage and facilitate easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional L-Foot connection brackets are used to secure solar panel rail guides on shingle roofs, then the installation process becomes arduous and time-consuming, but the brackets provide basic structural support
Solution Approach 1:
The bracket system is divided into separate components: a mounting bracket that attaches to the shingle roof, a rail guide that attaches to the bracket, and a solar panel that attaches to the rail guide. This segmentation allows each component to be optimized independently and facilitates easier installation by allowing components to be prepared separately and assembled in a logical sequence, reducing on-site installation time and complexity
Solution Approach 2:
The mounting bracket is pre-installed on the shingle roof before the rail guide and solar panel are attached. This preliminary action establishes a stable foundation first, allowing subsequent components to be easily positioned and secured without requiring complex simultaneous alignment, thereby simplifying the overall installation process and reducing time requirements
2Reliability
If L-Foot brackets are used without covering the penetration point, then installation is simpler, but water can leak into the roof
Solution Approach 1:
The mounting bracket is designed to combine multiple functions into a single integrated component: it provides structural support for the rail guide, covers the penetration point where the fastener enters the shingle roof, and creates a weatherproof seal. This merging of functions eliminates the need for separate components to address each concern, maintaining reliability while avoiding unnecessary complexity
Solution Approach 2:
The mounting bracket serves multiple purposes simultaneously: it acts as a structural support element, a weatherproofing element that covers the penetration point, and a mounting surface for the rail guide. This multi-functionality ensures water leakage protection is built into the primary support structure rather than requiring additional specialized components, balancing reliability with design efficiency
3Measurement precision
If asymmetric brackets are used, then installation direction is fixed, but structural stability is maintained, whereas symmetric brackets allow multi-directional installation but reduce precision
Solution Approach 1:
The mounting bracket incorporates an asymmetric U-shaped guide with a recessed path that is designed to receive and precisely position the rail guide in a specific orientation. This asymmetric geometry ensures that the rail guide can only be installed in the correct vertical alignment, providing precise measurement and positioning while the overall system remains adaptable through the modular component design
Data Source
AI summary
In various representative aspects, an assembly for securing a solar panel rail and rail-less support structures to a shingle roof. More specifically, the apparatus includes a connection bracket and flashing device for use in installing solar panel rail support structures. The connection bracket is secured to the flashing device by rotating its base around a threaded connection until it locks in place so that a solar panel rail support guide can be connected to a generally U-shaped connection on the top of the bracket. The apparatus also offers an improved means to cover the penetration point on the flashing to protect it and prevent water from leaking into the roof as well as an improved way to install the apparatus over existing products. An alternate embodiment of the apparatus is offered to support a rail-less pivot mount as well.