Roofing Grommet and Drainage Bracket for Leak-Resistant Mounts
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Solution Overview
Problem
Existing roofing systems face challenges in effectively mounting structures to roofs while preventing fluid leakage, particularly due to the lack of reliable sealing mechanisms between flashing and brackets, which can lead to water ingress and structural instability under varying weather conditions.
Innovation Solution
A roof mount assembly comprising flashing with apertures, seals, and brackets, where the seal is positioned between the flashing and the bracket, and a fastener extends through the bracket and flashing to create a watertight seal by inhibiting fluid flow through the aperture, using resilient materials like polymers or rubbers for the seals and various configurations of apertures and projections to enhance sealing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fastener extends through the aperture to mount the bracket, then the bracket is securely attached to the roof, but fluid can flow through the aperture causing leakage
Solution Approach 1:
A seal member is introduced as an intermediary component between the fastener and the flashing. The seal member includes a first portion that contacts the bracket and a second portion that extends through the aperture to contact the flashing, creating a watertight seal that prevents fluid leakage while allowing the fastener to securely attach the bracket to the roof
2Reliability
If the seal is positioned between the flashing and the bracket, then fluid leakage is prevented, but the complexity of the assembly increases
Solution Approach 1:
The seal member is integrated with the fastener system, where the seal member's second portion is positioned within the aperture and the fastener extends through both the seal member and the flashing. This merging of the sealing function with the fastening mechanism creates a unified assembly that prevents leakage without significantly increasing overall complexity
3Reliability
If resilient materials like polymers or rubbers are used for seals, then sealing effectiveness is improved, but the cost of materials increases
Solution Approach 1:
The seal member is constructed using resilient materials such as polymers or rubbers that can deform and conform to the interfaces between the bracket, fastener, and flashing. This flexibility allows the seal member to create an effective watertight barrier while using thin-film construction that minimizes material quantity and cost
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 solution effectively prevents fluid leakage by forming a watertight seal between the flashing and the bracket, ensuring the structural integrity of roof-mounted fixtures and enhancing their durability against weather-related stressors.
Implementation Method 1
a seal including a first portion positionable between the first surface of the flashing and the bracket and a second portion positionable to extend through the aperture and between the flashing and the fastener, the seal forming a water-tight seal to inhibit flow of fluid through the aperture
Data Source
AI summary
A roof mounting system mounts a structure to a roof and includes a roof substrate having a roof surface, a flashing positioned on the roof surface and having a flashing plane, and a bracket connected to the flashing. The bracket has a bottom surface that has a bracket plane. The bottom surface is positioned on the flashing, so that the flashing plane extends substantially parallel to the bracket plane. The bracket has a bracket aperture and a seal is positioned within the bracket aperture and has a seal aperture. A fastener extends through the bracket aperture and the seal aperture, and the seal limits flow of moisture through the bracket aperture. At least one of the flashing and the bracket form a drainage opening, so that the drainage opening permits egress of moisture away from of the bracket aperture.