Window Sill Panel Closing Elements Water Drainage
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Solution Overview
Problem
Window sills in buildings with thermal insulation composite systems are prone to water ingress, leading to structural damage due to condensation and rainwater penetration, which existing solutions fail to adequately address, especially in the connection area between windows and masonry.
Innovation Solution
A window sill panel design featuring closing elements on its side faces that extend beyond the support profile, forming a trough to direct water outside and incorporating longitudinal grooves or webs for enhanced sealing, allowing for better adaptation to frame sections and improved thermal insulation, and can be retrofitted without major renovation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If window sills protrude deep into the thermal insulation to achieve full thermal protection, then thermal insulation is improved, but water ingress into masonry or insulation increases
Solution Approach 1:
The window sill panel is divided into functional zones: a support profile for window/door mounting, closing elements at the ends, and longitudinal grooves or webs along the length. This segmentation allows each component to address specific water infiltration pathways while maintaining thermal insulation performance.
Solution Approach 2:
The closing elements act as intermediary structures between the window sill panel and the thermal insulation layer. These elements extend beyond the support profile to create a protective barrier that intercepts water before it reaches the insulation, while the longitudinal grooves or webs provide additional sealing interfaces with the frame.
2Reliability
If closing elements are added to prevent water ingress, then watertightness is improved, but device complexity increases
Solution Approach 1:
The closing elements are integrated with the support profile as a unified window sill panel assembly. The longitudinal grooves or webs are formed as continuous features along the support profile, creating a cohesive structure that provides multiple sealing functions without requiring separate discrete components for each function.
Solution Approach 2:
The support profile serves multiple functions simultaneously: it provides structural support for the window or door, incorporates longitudinal grooves or webs for water sealing, and integrates closing elements at the ends to prevent water ingress. This multi-functionality reduces the need for additional separate components.
3Adaptability or versatility
If the window sill panel is customized for each reveal size, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The window sill panel is designed with modular components that can be independently manufactured and then assembled. The support profile with its longitudinal grooves or webs can be produced as a standard component, and closing elements can be manufactured separately and attached as needed, allowing customization for different reveal sizes without requiring complete custom manufacturing.
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The invention relates to a window sill panel (3) with a sill body (5) having a longitudinal extension (6) and a lateral extension (7), an upper surface (12) and a lower surface, two lateral end faces (8, 9) in the direction of the lateral extension (7) as well as a front end face (10) and a rear end face (11) in the direction of the longitudinal extension (6), wherein a support profile (13) for supporting a window (2) or a door is arranged on the upper surface (12), in particular is integrally integrated into the sill body (5) which extends in the direction of the longitudinal extension (6).On each of the two lateral end faces (8, 9) a finishing element (14, 15) is arranged, which has a height (16) above the upper surface (12) that is greater than the height (17) of the support profile (13) in the same direction, and which extends at least approximately from the front end face (10) to a rear surface (21) of the support profile (13).