Pre-applied Tape Flashing Assembly for PV Mounts
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Solution Overview
Problem
The existing methods for mounting photovoltaic arrays on surfaces are inefficient due to the need for numerous penetrations, which require costly and time-consuming sealing with sealant materials, and are prone to installer errors and material waste.
Innovation Solution
A flashing assembly kit that includes flashing and tape, where the tape has distinct attachment areas for easy installation and sealing, reducing the need for extensive sealant application and minimizing errors, with a container system for organized storage and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealant materials are used to seal the interface of flashing and surface, then sealing is achieved, but cost and installation time increase
Solution Approach 1:
The sealing solution is segmented into multiple functional layers: flashing material providing primary sealing, tape providing secondary sealing, and sealant providing tertiary sealing. This segmentation allows each layer to perform its specific function efficiently, reducing the time and material needed for each individual sealing step while maintaining overall reliability.
Solution Approach 2:
The tape is pre-applied to the flashing during manufacturing, creating a pre-assembled flashing assembly with integrated sealing capabilities. This preliminary action eliminates the need for installers to apply tape on-site, significantly reducing installation time and eliminating variability in tape application quality.
2Reliability
If sealant materials are used to seal the interface of flashing and surface, then sealing is achieved, but material cost increases
Solution Approach 1:
The sealing system is divided into multiple layers with different functions and costs. The flashing provides structural sealing, the tape provides adhesive sealing at critical interfaces, and the sealant provides flexible sealing at movement joints. This segmentation optimizes material selection for each function, reducing overall material cost while maintaining reliability.
Solution Approach 2:
The tape is designed as a disposable, pre-applied component that provides sufficient sealing for the service life of the flashing assembly. This eliminates the need for expensive, long-lasting sealants in applications where the flashing itself provides the primary long-term sealing, reducing overall material cost.
3Reliability
If traditional sealing methods are used, then sealing is achieved, but installer errors increase
Solution Approach 1:
The tape is pre-applied to the flashing during manufacturing with precise positioning and orientation. This preliminary action eliminates common installer errors such as improper tape placement, incorrect orientation, and insufficient coverage. The flashing assembly arrives ready-to-install with sealing already optimized by manufacturers with specialized equipment.
Solution Approach 2:
The flashing and tape are merged into a single pre-assembled unit, eliminating the need for installers to separately handle and coordinate multiple sealing components. This merging reduces the complexity of the installation process and minimizes errors that occur when multiple separate sealing steps are performed manually.
4Adaptability or versatility
If numerous mounts with penetrations are used for PV arrays, then mounting capability is achieved, but sealing complexity increases
Solution Approach 1:
The flashing assembly is designed as a universal component that can be used with various mount types and roof surfaces. The standardized flashing design with pre-applied tape provides consistent sealing performance across different installation scenarios, reducing the need for multiple specialized sealing solutions and simplifying the overall sealing system.
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 significantly reduces installation time and errors, minimizes material waste, and ensures a watertight seal, allowing for faster and more reliable mounting of photovoltaic arrays with reduced labor and costs.
Implementation Method 1
The adhesive may be any adhesive known in the art. By way of non-limiting example, the adhesive may be a construction adhesive, a structural adhesive, a polyurethane adhesive, an epoxy adhesive, a silicone adhesive, or the like.
Data Source
AI summary
A kit for flashing a mount of a photovoltaic assembly on a surface includes a flashing assembly. The flashing assembly includes flashing that extends across an interface of the mount and the surface when the mount is attached to the surface. The flashing includes a bottom surface and a top surface. The flashing assembly also includes tape attached to the bottom surface of the flashing. The tape includes a first attachment area and a second attachment area. The flashing assembly has a first configuration in which the first attachment area is attached to the flashing and the second attachment area is unattached, and a second configuration in which the first attachment area is attached to the flashing and the second attachment area is attached to the surface. The tape is movable with the flashing as an assembly when the flashing assembly is in the first configuration. The first attachment area and the second attachment area positioned on opposite sides of the tape such that the tape extends between the surface and the bottom surface of the flashing when the tape is in the second configuration. The kit also includes a container defining an interior space to receive the flashing assembly.