Pre-Assembled Cedar Shingles With Ventilated Keyway Spacing
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Solution Overview
Problem
Conventional cedar shingle installation is tedious, time-consuming, and requires skilled labor, often leading to improper installation that compromises weatherproofing and durability due to issues like trapped moisture, solar vapor drive, and difficulty in achieving consistent keyway offsets and ventilation.
Innovation Solution
A pre-assembled shingle assembly system with inter-shingle clips that maintain keyway spacing and ventilation, allowing for rapid, precise installation without backer boards, and incorporating ventilation ridges to prevent moisture ingress and enhance drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cedar shingles are installed individually with random widths, then aesthetic appeal and weatherproofing are improved, but installation time and labor skill requirements increase significantly
Solution Approach 1:
The shingle installation system is segmented into pre-assembled units with consistent dimensions, allowing rapid installation while maintaining weatherproofing performance through standardized overlapping patterns and keyway configurations
Solution Approach 2:
Shingles are pre-assembled into units with predetermined keyway offsets and alignment features before installation, eliminating the need for skilled workers to manually measure and position each shingle during installation, thus reducing installation time while ensuring proper weatherproofing
2Reliability
If keyway offsets are manually positioned during installation, then weatherproofing performance is improved, but installation complexity and error risk increase
Solution Approach 1:
The shingle assembly is divided into modular units with built-in keyway features that automatically provide proper offsets when installed in sequence, eliminating the need for complex manual measurement and positioning procedures
Solution Approach 2:
The shingle units incorporate self-aligning features and pre-configured keyways that automatically ensure proper offset positioning during installation, allowing workers to install units without specialized skills while maintaining precise keyway alignment for optimal weatherproofing
3Productivity
If shingles are installed without ventilation gaps, then installation speed is improved, but moisture accumulation and solar vapor drive increase
Solution Approach 1:
Ventilation gaps are strategically incorporated at specific locations within the shingle assembly, such as at the edges or between layers, allowing moisture to escape from critical areas while maintaining the overall integrity and weatherproofing performance of the installation
Solution Approach 2:
Ventilation channels or gaps act as intermediary pathways that facilitate moisture and vapor escape from within the shingle assembly, preventing solar vapor drive and moisture accumulation while allowing rapid installation to proceed
Data Source
AI summary
An assembly, and a machine for constructing the assembly, that provides a much faster and more precise shingle installation with optimized keyway spacing and offsets, and with built-in ventilation that improves the performance of the shingles and protects the wall assembly. Also providing a pleasing distribution of shingle widths with no apparent patterns.