Roofing Material Rehabilitation via Liquid Polymer Coating
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Solution Overview
Problem
Weathered or degraded roofing materials typically require replacement, which is inefficient and costly, as existing methods do not effectively rehabilitate or remediate them in place.
Innovation Solution
A method involving a coating composition with a polymeric resin and a carrier, applied to the roofing material and polymerized using a reaction generator, without saturating the material, to create a solidified and rejuvenated layer that enhances mechanical properties and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If roofing materials are replaced with new materials, then the roof performance is improved, but the cost and waste increase
Solution Approach 1:
The patent applies parameter changes by modifying the chemical and physical properties of the roofing material through coating application. The coating composition undergoes polymerization to change from a liquid state to a solidified state, altering the material's mechanical properties, thickness, and weight while maintaining the base roofing material structure.
Solution Approach 2:
The patent creates a composite material system by combining the original roofing material with a coating composition that includes polymeric resin and carrier. This composite structure integrates the base material with the coating layer, achieving improved performance characteristics while preserving the existing material.
2Length of moving object
If coating composition is applied to roofing material, then the thickness and weight increase, but the material integrity must be maintained
Solution Approach 1:
The coating composition undergoes parameter changes through polymerization, transitioning from a liquid state to a solidified state. This phase change increases the thickness and weight of the coated material while the crosslinking reaction maintains structural integrity by creating a stable network structure.
Solution Approach 2:
The patent uses a coating composition that can be applied and then discarded or integrated, transforming the temporary liquid coating into a permanent solidified layer. The coating serves its purpose of enhancing properties and then becomes an integral part of the roofing material structure.
3Duration of action of stationary object
If coating composition is polymerized using reaction generator, then the coating solidifies and durability increases, but the process complexity increases
Solution Approach 1:
The coating composition performs self-service through autocatalytic polymerization, where the reaction generates its own catalyst or activator. This self-initiating mechanism eliminates the need for external complex curing systems, allowing the coating to solidify on its own when exposed to the reaction generator.
Solution Approach 2:
The patent replaces complex mechanical curing systems with a chemical reaction-based approach. Instead of using mechanical heat treatment or multi-step curing processes, the coating composition undergoes chemical polymerization triggered by the reaction generator, simplifying the overall process.
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 method extends the lifespan of weathered roofing materials by increasing thickness, weight, and tensile strength, while maintaining the integrity of the existing roof structure, allowing for reuse of granules and improving durability and appearance.
Implementation Method 1
exposing the coated roofing material to a reaction generator to polymerize the coating composition and thereby solidify the coating composition on the coated roofing material
Data Source
AI summary
This invention, in embodiments, relates to a method of rehabilitating or remediating a roofing material that includes obtaining a roofing material and obtaining a coating composition comprising a polymeric resin and a carrier. The coating composition is (i) substantially free of water and (ii) in the form of a liquid at at least 23° F. The method further includes applying the coating composition to the roofing material to prepare a coated roofing material, and exposing the coated roofing material to a reaction generator to polymerize the coating composition and thereby solidify the coating composition on the coated roofing material.