Plaster Rail System with Insulated Spacing for Thick Layers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rail systems for plastering are inadequate for thick plaster layers, as they either fail to provide sufficient leveling edges or surfaces or create thermal bridges due to the use of heat-conducting materials.
Innovation Solution
A rail system comprising a rail and setting elements that are fastened to the building wall with a connecting structure, allowing for the rail to be held at a distance and providing leveling edges or surfaces, while using low thermal conductivity materials to minimize thermal bridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal rails are used for plastering, then the rail provides sufficient strength and stability for leveling, but it creates thermal bridges that reduce thermal insulation
Solution Approach 1:
The patent introduces an intermediary component (insulating element) between the metal rail and the building wall to prevent direct thermal contact. This mediator reduces heat conduction while maintaining the structural function of the rail system, thereby resolving the thermal bridge problem without sacrificing strength.
Solution Approach 2:
The rail system combines different materials with complementary properties: metal components for strength and stability, and insulating materials (such as plastic or foam) for thermal protection. This composite approach allows the system to simultaneously achieve mechanical strength and thermal insulation performance.
2Ease of operation
If lightweight and narrow metal rails are used, then the rail is easy to handle and attach, but it is insufficient for thick plaster layers over 100 mm
Solution Approach 1:
The rail system incorporates adjustable components that allow the rail position and configuration to be modified according to different plaster thickness requirements. This dynamic adaptability enables the same lightweight rail system to handle both thin and thick plaster applications effectively.
Solution Approach 2:
The system uses modular, segmented components that can be assembled and adjusted in various configurations. This segmentation allows the lightweight rail to be adapted for different plaster thicknesses by adjusting the spacing and arrangement of support elements, maintaining ease of handling while increasing versatility.
3Reliability
If setting elements are fastened deeply into the building wall to provide stable support, then the rail is held securely at the correct distance, but it increases thermal bridge formation
Solution Approach 1:
Insulating setting elements serve as intermediaries between the building wall and the rail, providing secure mechanical anchoring while blocking thermal conduction paths. These mediators maintain the reliability of mounting by ensuring stable rail positioning without creating thermal bridges.
Solution Approach 2:
The system applies different material properties at different locations: insulating materials are used specifically at the mounting points where thermal bridges would form, while metal components are used for the rail itself where strength is needed. This localized application of material properties secures mounting reliability while minimizing thermal bridge effects.
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
Enables reliable leveling of thick plaster layers with minimal thermal bridge effect, allowing for adjustable and reusable components that reduce thermal conductivity and facilitate easy installation and removal.
Implementation Method 1
metal rails or other structures made of heat-conducting material embedded in the plaster can lead to thermal bridges
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A rail system for providing one or more screed edges and/or screed surfaces for plastering a building wall comprises at least one rail and at least two setting elements. The rail extends along a rail axis and has a connecting structure on its rear side perpendicular to the rail axis and a screed edge or screed surface on its opposite front side.The setting elements each extend along a setting element axis from a fastening section to a connecting section and are designed to be attached to the building wall on the one hand with their respective fastening section, in particular with a setting element axis oriented perpendicular to the building wall, and on the other hand with their respective connecting section to the connecting structure of the rail, so that they hold the rail spaced away from the building wall and with a rail axis that is at least substantially parallel to the building wall.