Lateral Intermediate Flashing Element for Slanted Roof Connections
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Solution Overview
Problem
Existing flashing systems for slanted roofs struggle to effectively connect lateral longitudinal flashing elements positioned at different altitudes, limiting the application of full-length sheet metal roofing between adjacent roof elements or windows.
Innovation Solution
A lateral intermediate flashing element with a L-shaped cross-section and a slit-shaped pocket, provided by a flat Z-shaped portion, allows adjacent pockets to be combined as extensions, facilitating the connection of lateral longitudinal flashing elements and enabling full-length sheet metal roofing application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If lateral longitudinal flashing elements are used for flashing roof elements at different altitudes, then the flashing coverage is improved, but the ability to connect adjacent flashing elements at different altitudes is insufficient
Solution Approach 1:
A lateral intermediate flashing element is introduced as a mediator between lateral longitudinal flashing elements positioned at different altitudes. This intermediate element features a L-shaped cross-section with a first leg for connection to the upper longitudinal element and a second leg extending to the lower altitude, enabling seamless connection across altitude differences while maintaining flashing coverage continuity.
2Adaptability or versatility
If a flat Z-shaped portion is used to create a slit-shaped pocket, then the connection capability between adjacent elements is improved, but the structural complexity increases
Solution Approach 1:
The second leg of the lateral intermediate flashing element is segmented into a flat Z-shaped portion that creates a slit-shaped pocket. This segmentation allows the pocket to be formed from a single continuous piece of material, enabling connection functionality while maintaining manufacturing simplicity and avoiding excessive structural complexity.
3Adaptability or versatility
If the width of the longitudinal portion varies along its length, then the connection fit between adjacent elements is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The lateral intermediate flashing element features a L-shaped cross-section where the width of the longitudinal portion varies along its length. The first leg has a different width than the second leg, with each section optimized for its specific connection requirements. This local quality variation enables precise fitting at both connection points while using standard manufacturing tolerances for each local section.
Data Source
AI summary
A lateral intermediate flashing element (100) for connecting lateral longitudinal flashing elements (200; 300) for flashing roof elements positioned adjacent each other at different altitudes along a slanted roof, comprises a longitudinal portion (110) with a generally L-shaped cross-section with a first leg (101) and a second leg (102), said second leg (102) comprising a slit-shaped pocket (105) with an opening towards a distal edge portion, the longitudinal portion (110) having an upper longitudinal end (120) and a lower longitudinal end (121), a width of the longitudinal portion (110) of the second leg (102) being smaller at the lower longitudinal end (121) than such width of the longitudinal portion (110) at the upper longitudinal end (120).


