Pre-fabricated Roofing Drip Edge with Pre-welded Flashing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods of installing roofing drip edges require high labor costs, pose safety risks, and are inefficient due to the need for hand welding at the job site, leading to slow and dangerous installation processes.
Innovation Solution
A pre-fabricated roofing drip edge device with a metal edge secured to a TPO or PVC membrane, featuring a flashing strip and connecting member that can be easily attached to the roofing surface using pre-welded or robot-welded connections, reducing the need for on-site hand welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hand welding is used to attach the roofing membrane to the metal drip edge at the job site, then the installation can be completed with simple equipment, but the labor cost increases and the installation speed decreases
Solution Approach 1:
The flashing strip member is pre-secured to the drip edge at the factory before installation. This preliminary action eliminates the need for on-site welding or complex field assembly, allowing installers to simply position and attach the pre-assembled unit to the roofing surface, thereby increasing installation speed while maintaining simplicity.
Solution Approach 2:
The patent combines the drip edge, flashing strip member, and connecting member into a single integrated assembly. By merging these components into one pre-fabricated unit, the installation process is simplified to a single attachment operation rather than multiple separate welding or fastening steps, improving both productivity and ease of installation.
2Strength
If hand welding is performed at the roof edge, then the metal drip edge can be securely attached to the roofing membrane, but safety risks increase due to workers standing at the edge
Solution Approach 1:
The secure attachment between the flashing strip member and drip edge is established in advance at the factory through pre-securing methods. This eliminates the need for workers to perform welding or fastening operations at the dangerous roof edge, as the attachment is already completed and only positioning and surface attachment are required on-site.
Solution Approach 2:
The connecting member acts as an intermediary component that facilitates the attachment of the integrated assembly to the roofing surface without requiring direct welding or fastening at the roof edge. This mediator component allows the secure attachment to be achieved through safer methods such as mechanical fastening or adhesive bonding performed from a safe position.
3Productivity
If pre-fabricated components with pre-secured connections are used, then installation speed increases and labor cost decreases, but the device complexity increases
Solution Approach 1:
The patent merges the drip edge, flashing strip member, and connecting member into a single integrated assembly with pre-established connections. While this creates a more complex component structure, it consolidates multiple functions into one unit that installs as a single piece, thereby increasing installation speed and reducing labor cost despite the higher component integration level.
Data Source
AI summary
This invention, in embodiments, relates to a roofing drip edge device that includes a drip edge comprising (i) an upper drip edge that is configured to be installed along an edge of a roofing surface, and (ii) a lower drip edge that is approximately at a right angle to the upper drip edge, a flashing strip member that is secured to the upper drip edge of the drip edge, such that a portion of the flashing strip member overhangs a first side edge of the drip edge, and a connecting member that is secured to the drip edge, such that a portion of the connecting member overhangs a second side edge of the drip edge. This invention, in embodiments, further relates to a method of installing a roofing drip edge device.