Roofing Heater with Hinge for Valley Ice Prevention
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Solution Overview
Problem
Conventional roofing products with heaters lack effective solutions for preventing ice formation in roof valleys and intersections, where heat is needed most, and often require extensive installation along the entire length of the valley, which is costly and time-consuming.
Innovation Solution
A roofing product with a heater substrate and a hinge that allows for selective installation along specific areas, featuring a plurality of heaters that can provide sufficient heat even if one heater fails, and includes a self-adhesive or non-adhesive backing for flexibility in application, with the hinge aiding in folding or retaining a non-planar shape for use in valleys and hips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heaters are installed along the entire length of the valley, then ice formation is prevented more comprehensively, but installation cost and time increase significantly
Solution Approach 1:
The patent applies local quality by concentrating heater elements specifically at the valley intersection area where ice formation is most critical, rather than distributing heaters uniformly along the entire valley length. This targeted approach maintains effective ice prevention at the highest-risk location while reducing overall heater quantity and installation time
2Reliability
If heaters are installed along the entire length of the valley, then ice formation is prevented more comprehensively, but material cost increases
Solution Approach 1:
The patent implements local quality by placing heater elements selectively at the valley intersection rather than along the entire valley length. This concentrates the heating function where it is most needed (at the intersection where water pools and freezes most readily) while significantly reducing the total quantity of heater material required
Solution Approach 2:
The patent extracts the essential ice prevention function from a full-length heater system and concentrates it at the critical intersection area. By removing unnecessary heaters from low-risk areas and retaining them only where ice formation is most problematic, the solution reduces material quantity while maintaining effective protection
3Reliability
If multiple heaters are installed in parallel, then continuous heat distribution is ensured even if one heater fails, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the heating function into multiple independent heater elements arranged in parallel at the valley intersection. This segmentation provides redundancy (if one element fails, others continue operating) while keeping each individual element simple in design and installation
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 the likelihood of ice formation on roofs by providing targeted heating in critical areas, allowing for cost-effective and time-efficient installation by enabling heaters to be placed only where needed, ensuring continuous heat distribution even if individual heaters fail.
Implementation Method 1
The heater may be located only below a nailing portion of the underlayment... a set of substantially identical resistive heater elements
Data Source
AI summary
A roofing product can include a substrate and a heater. The roofing product may be placed along portions of a roof where heat can help to reduce the likelihood of water freezing into ice while along a roof. In an embodiment, a hinge can be used in a roofing product to aid in folding of the roofing product or to retain a non-planar shape of the roofing product. The roofing product may or may not include a self-adhesive backing. A roofing product can include plurality of heaters that can provide sufficient heating should a particular heater fail. Method of fabricating the roofing product can be adapted for a fabrication line that can operate continuously.