Movable Plastering Strip for Thermal Insulation Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plastering strips fail to provide a reliable and permanent seal between thermal insulation and window/door frames, leading to moisture penetration and damage due to movement caused by temperature fluctuations and vibrations, resulting in cracks and detachment.
Innovation Solution
A plastering strip with a base area attached to the component and a front area designed for plastering, featuring a guide connection with a soft plastic extension that allows relative movement perpendicular to the main extension direction, ensuring sealing while accommodating shearing movements without detachment or cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid plastering strip is used to maintain structural stability, then the sealing reliability is improved, but the ability to accommodate movements caused by temperature fluctuations and vibrations deteriorates
Solution Approach 1:
The plastering strip incorporates a movable connection between its first and second portions, allowing the strip to dynamically adjust to relative movements between the building component and thermal insulation while maintaining continuous sealing contact. This dynamic design resolves the contradiction by enabling the rigid strip to accommodate movements without compromising sealing reliability.
Solution Approach 2:
The plastering strip utilizes materials with different mechanical properties - a rigid portion for structural stability and sealing, combined with a flexible or movable connection portion that can deform elastically. This parameter differentiation allows the strip to maintain sealing reliability while accommodating temperature-induced expansions and vibrations.
2Stability of the object's composition
If the plastering strip is firmly fixed to both the building component and thermal insulation, then the structural stability is improved, but the damage from accumulated movement stress deteriorates
Solution Approach 1:
The plastering strip is divided into distinct functional segments: a first portion firmly attached to the building component, a second portion attached to the thermal insulation, and a movable connection between them. This segmentation allows each portion to perform its specific function - maintaining structural stability while the movable connection absorbs movement stresses, preventing damage accumulation.
Solution Approach 2:
The movable connection acts as an intermediary element between the rigidly fixed portions of the plastering strip. It mediates the relative movements between the building component and thermal insulation, allowing stress relief while maintaining the overall structural integrity and firm attachment of both ends.
3Ease of manufacture
If a simple plastering strip design is used to reduce complexity, then the ease of manufacture is improved, but the ability to prevent moisture penetration deteriorates
Solution Approach 1:
The plastering strip employs a flexible sealing lip or membrane that can conform to the interface between the building component and thermal insulation. This flexible element provides effective moisture sealing while maintaining a relatively simple overall structure that is easy to manufacture. The flexible film accommodates movements without compromising the moisture barrier function.
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 compensates for shearing movements of several millimeters, maintaining tightness and preventing damage by allowing flexible relative movement between the base and front areas, ensuring a durable and watertight seal.
Implementation Method 1
At least part of the extension comprises a soft plastic material in order to enable a relative movement of the front region to the base region
Data Source
Figure 1
Figure 2
AI summary
A plastering strip (2) according to the invention for placement at a transition between a building component (46), in particular a window or door frame, a window sill, a beam, a metal connection or a pilaster, and thermal insulation and/or a plaster layer, comprises a base area (4) with which the plastering strip (2) can be attached to the building component (46); and a front area (16) which is intended for embedding in the plaster layer and/or for a fixed connection with the thermal insulation and which has a guide connection with the base area (4) which, optionally after releasing a connecting element (38), allows relative movement to the base area (4).The guide connection is designed as a projection (12) connected to the base region (4) and extending from it towards the front region and in a direction substantially perpendicular to the main extension direction of the component, and as a receiving area (20) of the front region (16) that at least partially receives this projection (12). This receiving area (20) has at least one guide projection (22, 24) for the projection (12) on its lower section facing the base region (4), such that during a relative movement of the front region (16) to the base region (4) in the direction of a change in distance between the front region (16) and the base region (4), the projection (12) is guided along a projection wall section on the guide projection (22, 24).At least part of the extension (12) has a soft plastic material to allow relative movement of the front region (16) to the base region (4) in a direction parallel to the main extension direction of the component (46).