Heat Insulation Element with Offset Reinforcement Mesh
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Solution Overview
Problem
Existing heat insulation composite systems for building facades face issues with deformation under high tightening torque, leading to increased plaster usage and potential instability, especially under wind suction loads, due to a full surface reinforcement mesh.
Innovation Solution
The reinforcement mesh is positioned at a distance from the surface of the heat insulating board, with a smaller surface area than the board, and integrated into an abutment with a carrier, such as adhesive mortar, to distribute loads and prevent deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reinforcement mesh is placed immediately on the surface of the heat insulating board, then the fastening elements can be easily positioned, but the heat insulating board and reinforcement mesh are drawn-in under high tightening torque, requiring larger quantities of plaster and reducing system stability
Solution Approach 1:
The reinforcement mesh is positioned at a distance from the surface of the heat insulating board (typically 2-5mm) by means of an abutment, transitioning from a 2D surface placement to a 3D spatial arrangement. This dimensional change allows the mesh to function as a load-distributing structure without being in direct contact with the board surface, preventing the draw-in effect under tightening torque while maintaining fastening element positioning capability.
2Strength
If the reinforcement mesh covers the complete surface of the heat insulation element, then the surface is uniformly reinforced, but the layer thickness increases and the carrying capacity reaches the load limit
Solution Approach 1:
The reinforcement mesh is positioned locally at a specific distance from the board surface through the abutment structure, rather than being uniformly distributed across the entire surface. This localized positioning provides sufficient reinforcement at the critical load-bearing interface while minimizing the overall layer thickness and plaster requirements.
3Device complexity
If the reinforcement mesh is placed immediately on the heat insulating board, then the structure is compact, but under high tightening torque the mesh and board are drawn-in, requiring thicker plaster layers that exceed the carrying capacity
Solution Approach 1:
The abutment acts as an intermediary element between the heat insulating board and the reinforcement mesh, maintaining a controlled distance (2-5mm) between them. This intermediary structure prevents the mesh and board from being drawn-in under tightening torque, distributing the mechanical loads effectively and maintaining structural integrity without requiring excessive plaster thickness.
Data Source
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Figure 3
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AI summary
The invention relates to a heat insulation element for insulating building facades, in particular for heat insulation composite systems, composed of a heat insulating board and a reinforcement mesh that can be penetrated by fastening elements, in particular plugs, wherein the reinforcement mesh is placed in the area of a large surface of the heat insulating board. It is the object of the invention to avoid the disadvantages of the state of the art and in particular to provide a heat insulation element which even in case of high tightening torques of the fastening elements does not excessively tends to be deformed into the direction of the building facade. This aim is achieved by a heat insulation element according to the invention, in which the reinforcement mesh is arranged as a component of an abutment at a distance to the surface of the heat insulating board and in which the reinforcement mesh comprises a surface area which is smaller than the area of the surface of the heat insulating board.