Hip and Ridge Shingle Perforation Segmentation
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Solution Overview
Problem
There is a need for improved hip and ridge roofing shingles and an efficient method of manufacturing them, as existing solutions do not adequately address the challenges of installing and separating shingles at intersections on varied roof surfaces.
Innovation Solution
The development of shingle blanks with strategically placed perforations and cuts, such as V-shaped and straight cut lines, notches, and tab sealants, which allow for easy separation into discrete portions during installation, facilitating the formation of hip and ridge roofing shingles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional roofing materials are used for hip and ridge intersections, then basic protection is provided, but installation complexity and material waste increase
Solution Approach 1:
The shingle blank is segmented into multiple discrete shingles through pre-formed perforation lines and cut lines. This allows individual shingles to be easily separated and installed at hip and ridge intersections, reducing installation complexity while maintaining protective function.
Solution Approach 2:
The shingle blank is pre-configured with perforation lines, cut lines, and notches during manufacturing. This preliminary preparation of separation features enables installers to easily divide the blank into required shapes on-site, eliminating the need for complex field cutting operations.
2Productivity
If shingle blanks are manufactured without pre-formed separation features, then manufacturing simplicity is maintained, but material waste and installation time increase
Solution Approach 1:
The shingle blank incorporates pre-formed perforation lines and cut lines that segment the material into multiple usable shingles. This segmentation allows nearly complete utilization of the blank material, minimizing waste while enabling efficient on-site separation and installation.
3Manufacturing precision
If complex cutting patterns are used to create hip and ridge shingles, then precise fit is achieved, but manufacturing complexity and time increase
Solution Approach 1:
Complex cut lines and perforation patterns are pre-formed in the shingle blank during manufacturing rather than being created on-site. This transfers the complexity to the manufacturing stage where it can be efficiently produced, while simplifying field installation to simple separation along pre-marked lines.
Solution Approach 2:
The shingle blank is designed with specific cut lines and perforation lines that segment the material into precisely shaped hip and ridge shingles. These pre-defined segmentation lines ensure accurate fit and alignment while simplifying the separation process during installation.
Data Source
AI summary
A shingle blank includes a substrate coated with asphalt. A substantially V-shaped perforated cut line is formed in the substrate, and a substantially straight cut line extends from an apex the V-shaped perforated line toward a leading edge of the shingle blank. The V-shaped perforated cut line and the substantially straight cut line are structured and configured to facilitate separation of the shingle blank into discrete portions.