Wall Connection Component for Window Frame Thermal Bridge Prevention
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Solution Overview
Problem
Existing frame components for mounting windows or doors in solid concrete building walls face challenges with thermal insulation, allowing heat to escape and resulting in an unsightly facade due to limited wall thickness, necessitating improved thermal bridging prevention and aesthetic alignment with conventional insulation systems.
Innovation Solution
A frame component with a wall connection component featuring an angle profile that allows the frame element to be securely mounted in front of the building wall, enabling the frame to be fully integrated within the ETICS layer, thus avoiding thermal bridges and maintaining a visually appealing facade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the frame component is mounted directly into the wall opening without a wall connection component, then the installation is simpler and quicker, but thermal bridges occur at the reveal surfaces and the window/door is set back too far from the facade
Solution Approach 1:
The patent introduces a wall connection component as an intermediary element between the frame component and the building wall. This angle-profiled connection piece with insulation material allows the frame to be mounted in front of the wall while maintaining thermal insulation, thus eliminating thermal bridges at the reveal surfaces without requiring direct embedding of the frame into the wall.
Solution Approach 2:
The invention changes the mounting dimension by allowing the frame component to be positioned in front of the building wall rather than being embedded within it. The wall connection component enables this spatial repositioning while maintaining proper thermal insulation, thus achieving both energy efficiency and aesthetic facade alignment.
2Loss of energy
If the frame element is pushed deep into the wall opening to achieve proper insulation, then thermal insulation improves, but the window or door is set back far from the exterior facade creating an unsightly appearance
Solution Approach 1:
The wall connection component serves as a mediator that allows the frame element to remain positioned in front of the building wall while still achieving proper thermal insulation. The angle profile with integrated insulation material bridges the gap between the frame and wall, providing thermal protection without requiring deep embedding that would compromise facade aesthetics.
3Loss of energy
If thicker ETICS insulation panels are used to improve thermal insulation, then energy efficiency improves, but the window or door must be set back even further from the facade
Solution Approach 1:
The patent segments the insulation function into two distinct parts: the wall connection component provides insulation at the critical thermal bridge areas (reveal surfaces and mounting points), while the main ETICS insulation panels continue to provide bulk insulation. This segmentation allows for effective thermal protection without requiring excessive setback of the window or door from the facade.
Data Source
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AI summary
A frame component (1) for mounting on a wall opening (2) in a building wall (3) intended for the installation of a window (2) comprises a frame element (5) defining a frame cavity (4) and a wall connection component (6) for mounting the frame element (5) to the building wall (3). The frame element (5) has side wall elements (10) and at least one transverse wall element connecting the side wall elements (10). The wall connection component (6) has an angle profile (16, 17) with at least a first and a second leg (20A, 20B, 21A, 21B). The first leg (20A, 21A) has a contact surface (24, 25) for the building wall (3). The second leg (20B, 21B) protrudes from the front of the first leg (20A, 21A) opposite the mounting surface (24, 25).A transverse wall element of the frame element (5, 5, 5") has a notch (28, 29) and/or a groove (41, 42) on its rear side, by means of which notch (28, 29) and/or groove (41, 42) it can be attached from a pre-assembly position to an assembly position onto the second leg (20B, 21B). (Fig. 4).