Gutter Hanger U-Shape Mounting for Moisture Sealing
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Solution Overview
Problem
Current gutter hanger systems fail to integrate with flashing at the fascia region without allowing moisture migration, leading to fascia deterioration and requiring frequent maintenance or replacement.
Innovation Solution
A gutter hanger design featuring a mounting portion with an upwardly opening 'U' shape that nests the depending flashing portion, secured to the building frame with fasteners through the flashing and fascia, creating a sealed interface that prevents moisture ingress while allowing foreign matter passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hanger mounting techniques are used to secure gutters to the fascia, then the gutter can be supported in an operative position, but moisture is allowed to migrate to against the fascia causing deterioration
Solution Approach 1:
The flashing is nested within the U-shaped mounting portion of the hanger, with the hanger effectively nesting the flashing component. This nested configuration allows the flashing to be integrated into the hanger structure while maintaining its protective function, preventing moisture migration to the fascia without requiring a completely separate integration system
Solution Approach 2:
The hanger mounting portion and flashing are merged into a single integrated assembly where the flashing is positioned within the U-shaped mounting portion. This merging combines the support function of the hanger with the protective function of the flashing, creating a unified system that prevents moisture ingress while supporting the gutter
2Reliability
If the flashing is integrated with the hanger mounting portion, then moisture migration is prevented, but the flashing function is compromised
Solution Approach 1:
The flashing is nested within the U-shaped mounting portion, positioned between the legs of the hanger. This nesting arrangement allows the flashing to maintain its protective function by covering the fascia, while simultaneously being protected and integrated by the hanger structure, preventing moisture migration pathways
Solution Approach 2:
The flashing is positioned specifically within the U-shaped mounting portion at the critical location where moisture ingress would occur. This localized placement ensures the flashing performs its protective function exactly where needed, while the hanger provides structural integration and additional protection at the same location
3Strength
If multiple fasteners are used to secure the hanger through the flashing and fascia, then the gutter is securely supported, but the flashing is damaged creating openings for moisture
Solution Approach 1:
The fasteners pass through the U-shaped mounting portion and the nested flashing to secure the entire assembly to the fascia. This nested fastening approach maintains the integrity of the flashing-seal relationship while achieving secure mounting, as the flashing remains positioned within the protective U-shape even when penetrated by fasteners
Data Source
AI summary
A gutter hanger having a mounting portion to be secured to a building frame and a support portion to engage a gutter in an operative position on the building frame. The mounting portion has first and second legs joined together to define an upwardly opening “U” shape to receive a depending flashing portion with the mounting portion secured to a building frame.