Insulating Coating with Wool Flakes for Thermal Performance
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Solution Overview
Problem
Existing construction techniques for thermal insulation of building facades are complex, time-consuming, and generate waste, with poor junctions between panels leading to suboptimal thermal performance.
Innovation Solution
A composition of mineral or plant-based wool flakes, a powdered mineral binder, and a water-repellent agent is mixed with water and applied as a coating, providing a simpler, faster method for thermal insulation with improved adhesion, cohesion, and mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If panels of insulating material are arranged on exterior walls using mechanical fasteners or adhesives, then thermal insulation performance is improved, but installation complexity and time increase
Solution Approach 1:
The invention merges the insulating material with the rendering coating by incorporating wool flakes directly into the coating composition. This eliminates the need for separate panel installation and mechanical fastening systems, reducing installation complexity while maintaining thermal insulation performance through the integrated coating layer.
Solution Approach 2:
The invention replaces mechanical fastening systems and adhesive-based panel installation with a spray-applied coating that cures to form an integrated insulating layer. The coating chemically bonds to the substrate and contains embedded wool flakes, eliminating the need for mechanical anchors or adhesive panels.
2Reliability
If panels of insulating material are arranged on exterior walls, then thermal insulation performance is improved, but installation time increases
Solution Approach 1:
The invention replaces time-consuming mechanical panel installation with a spray-applied coating that is applied continuously and cures in place. The coating is sprayed in a liquid form and hardens to form the insulating layer, eliminating cutting, fitting, and fastening operations that consume significant installation time.
Solution Approach 2:
The invention changes the physical state of the insulating material from solid panels to embedded flakes within a coating matrix. The wool flakes are dispersed within the liquid coating composition, allowing continuous application without the need to handle, cut, or assemble separate panel components, thereby reducing installation time.
3Reliability
If panels of insulating material are used, then thermal insulation performance is improved, but waste generation increases
Solution Approach 1:
The invention changes the form of insulating material from rigid panels requiring cutting and fitting to flexible wool flakes that can be uniformly distributed within the coating. This eliminates off-cuts and wasted material from panel cutting operations, as the flakes are applied in a controlled slurry form that adheres precisely to the substrate.
Solution Approach 2:
The invention replaces mechanical panel installation with a spray coating process that applies material in a controlled liquid form. This eliminates the need for on-site cutting and fitting operations that generate waste, while allowing precise application of the insulating coating to the required surface area only.
4Reliability
If panels are used for insulation, then thermal insulation performance is improved, but junction quality deteriorates
Solution Approach 1:
The invention merges the insulating function with the coating function into a single integrated layer. The coating contains embedded wool flakes that are distributed throughout the matrix, creating a uniform insulating layer without the junction gaps and thermal bridges that occur between separate panels. The coating forms a continuous layer over the substrate.
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 achieves effective thermal insulation, good adhesion to walls, resistance to environmental aging, and excellent mechanical properties while reducing installation time and waste, with a lower carbon impact.
Implementation Method 1
The mineral binder powder present in the composition becomes pasty after being mixed with water, before hardening
Implementation Method 2
The mineral binder powder present in the composition becomes pasty after being mixed with water, before hardening
Implementation Method 3
a water-repellent agent... good resistance to the environment and to aging
Data Source
AI summary
A composition includes flakes of mineral or plant-based wool, a powdered mineral binder and a water-repellent agent.