Roofing Shingle Sealant Sites for Wind Resistance
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Solution Overview
Problem
Existing roofing shingles face challenges in promoting both drainage and wind resistance while minimizing the use of sealant material, and they often result in shingle waste and excessive nailing during installation.
Innovation Solution
The roofing shingle design features a web with two series of sealant material sites, where the second series is spaced farther apart than the first, and a backing sheet with a smaller width, allowing for efficient adhesion and drainage while reducing the need for extensive nailing and minimizing waste through a specific installation method that involves overlapping shingle portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealant material is applied continuously along the shingle, then wind resistance is improved, but sealant material usage increases excessively
Solution Approach 1:
The sealant material application is segmented into discrete sites rather than continuous application. The shingle features multiple separated locations where sealant is applied, creating intervals of no sealant between applications. This segmentation maintains wind resistance by providing sufficient adhesion points while reducing overall sealant consumption by eliminating continuous material application.
2Reliability
If traditional nailing methods are used, then shingles are secured to the roof, but shingle waste and excessive nailing occur
Solution Approach 1:
The shingles are pre-cut into specific configurations with notches and tabs that enable direct interlocking with adjacent shingles before installation. This preliminary preparation allows the shingles to be assembled like puzzle pieces, eliminating the need for excessive nailing and reducing installation waste by ensuring proper fit and alignment during the installation process.
3Productivity
If large format shingles are used, then fewer nails are required, but drainage and wind resistance become challenging to achieve
Solution Approach 1:
The large format shingle incorporates localized features including notches, tabs, and specific sealant application sites positioned at critical locations. These localized structural variations create channels for drainage and provide concentrated wind resistance points throughout the shingle surface, allowing the large format design to maintain both drainage capability and wind resistance while requiring fewer nails for installation.
Data Source
AI summary
A roofing shingle (20) comprises a web (22) of roofing material configured with a first series of sealant material sites (60) and a second series of sealant material sites (62) provided on the roofing shingle (20). The web (22) of roofing material is configured with a length dimension (L) and a width dimension (W). The sealant material sites 60 of the first series are provided along a first axis (66) which is essentially parallel to the length dimension of the web. The sealant material sites (60) of the first series are discontinuous along the first axis (66) and separated from one another along the first axis by a first interval (70). The sealant material sites of the second series (62) are provided along a second axis (68) which is essentially parallel to the length dimension of the web and spaced apart from the first axis (66) with respect to the width dimension. The sealant material sites (62) of the second series are discontinuous along the second axis (68) and are separated from one another along the second axis (68) by a second interval (72), the second interval (72) being different than the first interval (70).