Radiused Gutter Hanger Structure for Drainage and Ice Loads
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Solution Overview
Problem
Existing gutter hangers interfere with water and debris flow, leading to debris accumulation and increased weight stress, and fail to support additional loads such as gutter covers and ice, while also requiring adjustable cantilevers to match roof angles.
Innovation Solution
A gutter hanger system with a strut featuring a center cut and flanges with dimples for roof strap attachment, allowing water and debris drainage, and incorporating radiused edges and gussets for strength and stability, along with adjustable cantilevers to match roof angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional gutter hangers are used to support the gutter, then the gutter is held up from the fascia board, but the hangers interfere with water and debris flow causing accumulation and pooling
Solution Approach 1:
The hanger is divided into separate functional components: a mounting portion that attaches to the fascia board and a cantilevered support portion that extends over the gutter. This segmentation allows the support function to be separated from the potential obstruction to water flow, as the cantilevered portion is positioned to clear the gutter bottom while still providing structural support.
Solution Approach 2:
The hanger design extends the support structure into the third dimension by cantilevering over the gutter rather than contacting it from below. This dimensional change allows the hanger to provide support while clearing the gutter's interior flow path, eliminating the interference with water and debris flow that plagues traditional bottom-supported hanger designs.
2Strength
If gutter hangers support heavy gutters filled with debris, then the support load increases, but the hangers cannot adequately support additional weight from gutter covers and ice
Solution Approach 1:
The hanger is designed with enhanced structural characteristics that provide universal support capability for multiple load types: the gutter weight, accumulated debris, gutter covers, and ice. The reinforced geometry and material selection enable the single hanger design to handle diverse loading conditions without requiring different hanger types.
Solution Approach 2:
The hanger's structural parameters are optimized to increase load-bearing capacity: thicker gauge metal, reinforced geometry with increased moment of inertia, and optimized cantilever dimensions. These parameter changes enable the hanger to support significantly heavier loads including ice accumulation and gutter covers while maintaining deflection within acceptable limits.
3Ease of manufacture
If the hanger cantilevers from the roof fascia board, then installation is simplified, but the cantilever length must be precisely adjusted to match roof and gutter angles
Solution Approach 1:
The cantilevered support portion is designed with adjustable characteristics that allow it to adapt to different roof pitches and gutter angles. This may include adjustable mounting hole patterns, flexible connection points, or geometric features that permit angular adjustment during installation, enabling the same hanger design to work across various roof configurations without complex customization.
Data Source
AI summary
A gutter hanger with radiused deep vertical side walls to improve the hanger strength with a surface suitable for attaching accessories such as Christmas lights or heat tape.