Roof Membrane Protective Sheet Lamination Without Adhesive Residue
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Solution Overview
Problem
During the installation of single-ply roofing membranes, the surfaces are prone to dirt and scratches due to the difficulty in keeping them clean and the need for protection from foot traffic, which existing solutions do not adequately address.
Innovation Solution
A protective sheet is removably affixed to the roofing membrane without adhesives or tackifiers, using heat and pressure to secure it, allowing for easy removal after installation and providing additional benefits like UV protection and anti-slip properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a protective sheet is applied to the roofing membrane during installation, then the membrane is protected from scratches and dirt, but the complexity of the installation process increases due to the need for additional materials and steps
Solution Approach 1:
A protective sheet acts as an intermediary layer between the roofing membrane and the installation environment. The sheet is temporarily applied to protect the membrane surface from scratches, dirt, and foot traffic during installation, then removed after installation is complete. This mediator approach resolves the contradiction by providing protection without permanently complicating the final roof structure.
Solution Approach 2:
The protective sheet is applied before the actual roofing membrane installation is completed. This preliminary action ensures the membrane surface is protected during the installation process when it is most vulnerable to damage from foot traffic and materials, then the sheet is removed to reveal the clean, protected membrane surface.
2Reliability
If adhesive or tackifier is used to secure the protective sheet, then the sheet remains in place during installation, but residue is left on the membrane surface after removal
Solution Approach 1:
The protective sheet is designed as a temporary, disposable component. It is secured to the membrane using a minimal amount of adhesive or mechanical means that allow for clean removal. The sheet serves its protective function during installation and is then discarded, eliminating the problem of residue accumulation on the membrane surface.
Solution Approach 2:
The adhesive or securing mechanism is extracted as a separate, removable component rather than being permanently bonded. The protective sheet is designed to be easily separated from the membrane after serving its protective purpose, taking the adhesive or securing elements with it and leaving no harmful residue on the membrane surface.
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 protective sheet effectively prevents scratches and dirt, facilitates easier installation by providing a safe surface for foot traffic, and ensures the membrane remains clean and undamaged until exposure, enhancing the installation process and final appearance.
Implementation Method 1
heating one or both of a membrane and a protective sheet
Implementation Method 2
pressing the membrane and the protective sheet together... applying a pressure in the range of 30 to 300 pounds per linear inch
Data Source
AI summary
A roof laminate (10) includes a roof membrane (12, 100, 200, 300) and a protective sheet (14, 114, 214, 314) removably affixed thereto. The surface (20) of the roof membrane (12, 100, 200, 300) can be protected from dirt, scratches and scrapes by a protective sheet (14, 114, 214, 314) which also provides other beneficial attributes that aid an installer. The membrane (12, 100, 200) and the sheet (14, 114, 214) are heat laminated together in the absence of adhesive and tackifiers. Alternatively, the membrane (12, 300) and the sheet (14, 314) are surface treated and then brought into contact with one another in the absence of adhesive and tackifiers. The sheet (14, 114, 214, 314)) may be single layer or include at least a first layer (30) directly secured to a second layer (32). The first layer (30) provides at least one of UV protection, anti-slip, and anti-glare to the roof laminate (10) and so aids the installer in at least one of those respects. The second layer (32) is removably affixed to the roof membrane (12, 100, 200, 300).