Insulated Asphalt Shingle Headlap Design for Thermal Resistance
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Solution Overview
Problem
Conventional roofing materials lack inherent insulation properties, leading to increased energy costs and aesthetic concerns, with existing insulation methods being costly, complex, and unsuitable for residential use due to weight, fire resistance issues, and poor wind resistance.
Innovation Solution
An energy-saving insulated roofing shingle design featuring an insulator attached to or formed as part of the interior surface of the shingle's headlap area, reducing heat absorption and transmission, while maintaining the shingle's bonding capabilities and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional asphalt shingles are used, then cost and ease of installation are improved, but thermal insulation performance deteriorates
Solution Approach 1:
The patent combines asphalt shingle material with insulation material to create a composite shingle structure. The insulation material is integrated into the shingle construction, forming a multi-layer composite that provides both the durability and ease of installation of asphalt shingles plus the thermal insulation properties of the insulation material.
2Loss of energy
If insulation material is applied across the entire shingle back surface, then thermal insulation is improved, but wind resistance and bonding performance deteriorate
Solution Approach 1:
The patent applies insulation material selectively to specific regions of the shingle back surface rather than covering the entire surface. This localized application provides thermal insulation where needed while leaving other areas exposed to maintain proper bonding between shingles and ensure wind resistance through adequate exposure surfaces.
3Loss of energy
If foam boards are used for insulation, then thermal insulation is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent merges the insulation function with the shingle structure itself by integrating insulation material directly into the shingle construction. This combination eliminates the need for separate insulation installation steps, reducing installation complexity and cost while maintaining effective thermal insulation performance.
4Object-affected harmful factors
If reflective coatings are applied to shingles, then heat reflection is improved, but manufacturing complexity increases
Solution Approach 1:
The patent incorporates reflective properties through the integration of insulation material that inherently provides thermal resistance. This composite approach addresses heat absorption issues through the insulating properties of the integrated material rather than requiring separate reflective coating applications, thereby avoiding increased manufacturing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces heat load into attic spaces, lowers utility costs, and enhances wind resistance without affecting the shingle's reflectivity or emissivity, making it a more attractive and efficient roofing option.
Implementation Method 1
The shingle has an insulator attached to, or formed as part of, the interior surface of an outer layer across a substantial portion of a headlap area of the shingle. The insulator reduces the amount of heat that is transmitted into the decking material that in turn heats the attic space.
Data Source
AI summary
An energy saving insulated roofing shingle and related method of manufacturing. One embodiment of the shingle has an insulator attached to, or formed as part of, the interior surface of an outer layer across a portion of the headlap area about equal to the designed exposure surface area of the installed shingle. The insulation reduces the heat absorbed by the shingle and transmitted into the deck that in turn heats the attic space. The disclosed principles reduce the heat load directed into a building from the sun. In addition, the thickness of the insulation under the shingle nailing area may be minimized, thereby allowing for the normal asphalt shingle surfaces to lay against each other. Moreover, to reduce the overall shingle thickness, the insulation could replace all or part of the backsurfacing materials applied to the back of shingles in the location where the insulation is added. Additionally, asphalt applied to the back of the shingle could be reduced to accommodate insulation thickness.