Replacement Window Cladding System for Existing Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for replacing windows often result in a double frame, reducing vision glass area and egress size, failing to allow insulation between the window frame and stud opening, and altering the original window's appearance.
Innovation Solution
A system where a new exterior window unit is installed as a complete unit over the old frame, using a clad frame with built-in sashes and counterbalances, secured directly to the old frame, maintaining the original frame size and allowing for insulation and adjustment to match new construction standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a new window unit with its own frame is installed over the old frame, then the window can be replaced, but the frame size increases and vision glass area is reduced
Solution Approach 1:
The invention extracts the old window frame from the opening and replaces it with a new window unit that has its own integrated frame. The new window unit is designed to fit directly into the opening without requiring additional framing structures, thereby maintaining the original opening dimensions and maximizing the vision glass area.
Solution Approach 2:
The invention merges the window unit and its frame into a single integrated assembly. The new window unit includes a frame that is built-in to the unit itself, eliminating the need for separate framing components and reducing the overall space occupied by the window assembly.
2Reliability
If a new window unit with its own frame is installed, then the window can be replaced, but the egress size is reduced below minimum requirements
Solution Approach 1:
The invention extracts the old frame and replaces it with a new window unit designed to meet or exceed minimum egress requirements. The new window unit's frame is configured to provide adequate opening dimensions for emergency egress while maintaining a compact overall size.
Solution Approach 2:
The invention changes the dimensional parameters of the window unit to ensure compliance with minimum egress requirements. The new window unit is designed with specific dimensions that guarantee adequate opening height and width for emergency evacuation while optimizing the vision glass area.
3Stability of the object's composition
If the old window frame is retained and a new window unit is inserted inside, then the original frame is preserved, but insulation cannot be installed between the frame and stud opening
Solution Approach 1:
The invention extracts the old window frame from the opening and removes it entirely. This allows for the installation of insulation material in the stud opening pocket between the new window unit and the building structure, thereby improving energy efficiency and reducing air leakage.
Solution Approach 2:
The invention performs preliminary insulation installation in the stud opening pocket before installing the new window unit. This ensures that insulation is placed in the correct position and properly secured, maximizing its effectiveness in preventing energy loss and air infiltration.
4Ease of manufacture
If a bent coil stock is applied over the old exterior wood, then the old frame is covered, but the original window appearance is changed
Solution Approach 1:
The invention extracts and removes the old window frame and exterior wood components. The new window unit is then installed to replace the entire assembly, allowing for a clean and precise fit that maintains or enhances the original window's appearance without the need for cosmetic coverings.
Solution Approach 2:
The invention creates a new window unit that replicates the appearance and style of the original window while incorporating modern materials and construction techniques. The new window unit is designed to match the architectural style of the building, providing visual continuity while improving performance.
Data Source
AI summary
A window unit and replacement window cladding method and system which is provided as a single unit to be installed as a complete new window that fits over the head, side jamb and sill of an existing window frame and the old window frame that is cladded with head jamb, side jamb, and sill cover assemblies defining an opening in which one or more sash units is pivotally secured forming a replacement window unit, without any loss of glass size and egress, and without disturbing the building interior.