Roof Window Ventilation Assembly with Integrated Frame Flow Paths
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Solution Overview
Problem
Existing roof window systems face challenges in retrofitting ventilation assemblies, requiring special parts and additional installation, and often compromise insulation and space for ventilation equipment, especially in top-hung and electrically operated windows.
Innovation Solution
A roof window system with a ventilation assembly that connects directly to the exterior or another ventilation assembly, utilizing transition means through the frame top member to accommodate flow paths, enhancing insulation and allowing space for other equipment, and incorporating a filter assembly for improved indoor climate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a roof window is designed to receive a ventilation assembly with special parts and auxiliary installation equipment, then ventilation functionality is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The frame top member is designed with integrated apertures and transition means that serve multiple functions: they provide flow paths for ventilation assembly connection, maintain insulation performance, and accommodate various window types (center-hung, top-hung, electrically operated) without requiring special parts. This universal design eliminates the need for auxiliary installation equipment while maintaining ventilation functionality.
2Ease of operation
If flow paths are led above the top frame member, then ventilation assembly connection is simplified, but insulation performance deteriorates
Solution Approach 1:
The transition means act as an intermediary element between the ventilation assembly and the interior space. These transition means are integrated into the frame top member and provide flow paths that guide air movement while maintaining the insulating function of the frame structure. The transition means enable ventilation connection without creating thermal bridges or compromising insulation performance.
3Loss of energy
If the frame top member accommodates ventilation flow paths, then insulation performance is improved, but space for other equipment (e.g., top hinge device) is reduced
Solution Approach 1:
The frame top member is designed with localized apertures positioned specifically to accommodate flow paths while preserving space in other areas for equipment such as top hinge devices or electrical operators. The apertures are strategically located to maintain insulation performance in critical thermal zones while providing necessary clearance for mechanical components. This localized design allows different regions of the frame top member to serve different functions without conflict.
4Adaptability or versatility
If transition means with apertures through the frame top member are used, then ventilation integration is improved, but manufacturing complexity increases
Solution Approach 1:
The transition means are integrated directly into the frame top member as a unified structure rather than being separate components. The apertures for flow paths are formed as part of the frame top member manufacturing process, combining the functions of structural support, insulation, and ventilation integration into a single manufactured element. This merging reduces the number of separate parts and assembly steps while maintaining ventilation integration capabilities.
Data Source
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AI summary
In a roof window system, the roof window (1) has a frame with a frame top member (21) and a bottom member (22). A ventilation assembly (200) is provided at the bottom member (22) of the frame (2) and provides intake of fresh air from the exterior to at least one room (83) of a multi-storey building.