Wedge-Shaped Drainage Profile for Window Sill Sealing
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Solution Overview
Problem
Window connection openings in buildings face challenges with moisture ingress and thermal bridging, leading to water damage and reduced insulation effectiveness due to inadequate sealing between the window and window sill, particularly at the 'trade hole' area, which requires skilled craftsmanship and specialized tools.
Innovation Solution
A sub-window sill section with a wedge-shaped discharge profile that tapers from the outside to the inside, combined with a sealing layer, to guide water away from the window frame and prevent moisture penetration, allowing for easy and reliable sealing without specialized tools or personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sealing methods are used at window connection openings, then installation can be performed with standard procedures, but moisture ingress and water damage occur due to inadequate sealing effectiveness
Solution Approach 1:
The drainage profile is pre-installed at the window connection opening before the window frame and seal are installed. This preliminary action creates a prepared drainage pathway that guides water away from the opening, preventing moisture ingress before it can cause damage. The profile is positioned to receive and channel water that may penetrate the seal, ensuring reliable protection against moisture.
2Manufacturing precision
If specialized tools and skilled personnel are used for window installation, then sealing precision can be improved, but installation complexity and cost increase
Solution Approach 1:
The drainage profile is designed to be self-aligning and easy to install, requiring no specialized tools or highly skilled personnel. The profile's geometry allows it to be simply positioned and fixed at the window connection opening, where it automatically creates the necessary drainage pathway. This self-service design enables ordinary workers to achieve reliable sealing and water drainage without requiring expert craftsmanship.
3Object-affected harmful factors
If the window connection opening is properly sealed to prevent moisture ingress, then water damage is prevented, but thermal bridging issues persist due to the connection opening structure
Solution Approach 1:
The drainage profile acts as an intermediary element between the window frame and the building structure. It provides a thermal break by being made of insulating material, preventing direct thermal contact between the metal window frame and the masonry or concrete structure. Simultaneously, it fulfills the drainage function by guiding water away from the connection opening, thus addressing both thermal bridging and moisture ingress issues.
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 prevents waterlogging and moisture ingress, ensuring a sealed installation and maintaining insulation integrity by guiding water away from the plaster layer and masonry, even with ordinary sealing foils, and can be used in various window configurations.
Implementation Method 1
A sub-window sill section with a wedge-shaped discharge profile that tapers from the outside to the inside, combined with a sealing layer, to guide water away from the window frame
Data Source
Figure 1~1a
Figure 2
Figure 3~4
AI summary
In a sub-windowsill section (1) for positioning on a bottom surface (204) of a window connection opening (200) in a transverse direction (Q) between a right and a left edge surface (202) of the window connection opening (200), wherein the window connection opening (200) extends in a longitudinal direction (L) from a building exterior (201) to a building interior (203), comprising a planar sub-windowsill profile (11) which is designed and configured to cover the bottom surface (204) at least section by section in the transverse direction (Q) and longitudinal direction (L);and a wedge-shaped drainage profile (3) designed and configured to be or be arranged at a service opening (300), wherein the drainage profile (3) is arranged on the left or right end face of the lower window sill profile (11) and extends upwards from the flat lower window sill profile (11) in the vertical direction (V), it is provided that the drainage profile (3) has a vertical cross-section which tapers in the course of the drainage profile (3) from an outer end (31) in the longitudinal direction to an inner end (33) in the transverse direction (Q), in particular continuously and/or steadily.