Laminated Roofing Shingle with Variable Tab Breadths for Wind Resistance

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing asphalt shingles that simulate the appearance of thicker materials like slate or wood shakes are susceptible to wind failure, especially in cold weather, and inefficient in material usage during manufacturing.

Innovation Solution

A two-layer laminated shingle design with anterior tabs of varying breadths and openings that partially cover posterior tabs, creating a visually appealing random pattern, enhancing the appearance of thickness and improving wind resistance while minimizing material waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If composite shingles are designed to simulate the appearance of thicker materials like slate or wood shakes, then aesthetic appearance is improved, but wind resistance deteriorates

Engineering Contradiction:

Improveaesthetic appearanceVSAvoidwind resistance

Core Design Contradiction:

ShapeVSStrength

Solution Approach 1:

The shingle is divided into multiple layers (front layer, middle layer, rear layer) with each layer containing tabs. The front layer tabs are selectively positioned to cover certain rear layer tabs while leaving others uncovered, creating a segmented structure that maintains both aesthetic appearance and wind resistance

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the shingle have different tab coverage characteristics. Some tabs are fully covered by front layer tabs, some are partially covered, and some are completely uncovered. This local variation in coverage creates the desired aesthetic appearance while maintaining structural integrity and wind resistance

Inventive Principle:

Principle #3Local quality

2Shape

If laminated shingle designs are used to create variable thickness appearance, then aesthetic appearance is improved, but material usage efficiency deteriorates

Engineering Contradiction:

Improvevariable thickness appearanceVSAvoidmaterial waste

Core Design Contradiction:

ShapeVSLoss of substance

Solution Approach 1:

The shingle is segmented into three layers with tabs at different positions and coverage levels. This segmentation allows for optimized material distribution, creating the variable thickness appearance while minimizing excess material usage compared to traditional laminated designs

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of completely covering all tabs to maximize appearance effects, the design uses partial coverage where only certain tabs are covered by front layer tabs. This partial action achieves the desired aesthetic effect while reducing material consumption and waste

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9739062B2Roofing shingle system and shingles for use therein

Publication Date: 2017.08.22 BMIC LLC

AI summary

A laminated roofing shingle is disclosed comprising a posterior layer with tabs and an anterior layer with tabs spaced apart by openings, wherein each posterior tab is partially covered by a corresponding anterior tab, wherein at least one anterior tab has a first anterior tab breadth and at least another anterior tab has a second anterior tab breadth, and wherein at least one anterior opening has a first anterior opening breadth that is about equal to the second anterior tab breadth and wherein at least another anterior opening has a second anterior opening breadth that is about equal to the first anterior tab breadth. Also disclosed is a roofing system comprising a plurality of courses of the shingle.