Building Waterproofing with Repositionable Adhesive Membranes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing building sealing methods require high amounts of sealing compound, complex application processes, and are prone to errors due to strong adhesive bonds, making them difficult to correct and requiring primer treatment, which complicates the sealing of complex geometries and increases labor requirements.
Innovation Solution
A method involving the application of an adhesive followed by pressing on sealing sheets, allowing for easy correction and repositioning of sheets before a strong bond forms, eliminating the need for primer treatment and enabling simpler handling and application, particularly suitable for complex geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If self-adhesive sealing membranes are used, then sealing reliability is improved, but ease of operation deteriorates due to strong adhesive bonds preventing correction
Solution Approach 1:
The method applies a preliminary adhesive layer to the substrate before applying the sealing membrane. This preliminary adhesive allows the membrane to be repositioned during the open time period, enabling corrections while still achieving reliable sealing once the adhesive bonds fully.
Solution Approach 2:
The adhesive system transitions from a movable state during application (open time) to a fixed state after bonding. This dynamic property allows the sealing membrane to be repositioned initially, then secured in its final position, resolving the contradiction between ease of correction and sealing reliability.
2Strength
If primer treatment is applied, then adhesive bond strength is improved, but device complexity increases due to additional processing steps
Solution Approach 1:
The method extracts the primer treatment step from the traditional sealing process. By applying adhesive directly to the substrate without prior primer treatment, the process complexity is reduced while maintaining adequate adhesive bond strength for reliable sealing.
Solution Approach 2:
The adhesive serves as both the bonding agent and the preliminary surface treatment. By combining the functions of primer and adhesive into a single application step, the process is simplified while still preparing the surface for effective sealing membrane attachment.
3Reliability
If thick coatings are used, then sealing reliability is improved, but loss of substance increases due to high material consumption
Solution Approach 1:
The method uses thin sealing membranes instead of thick coatings. These flexible membranes provide reliable sealing while consuming significantly less material, reducing both material cost and waste compared to traditional thick coating applications.
Solution Approach 2:
The sealing approach transitions from thick material application to thin membrane application. This parameter change in sealing thickness achieves equivalent or superior sealing reliability with dramatically reduced material consumption.
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
This method simplifies the sealing process, allowing for quick and accurate application by one or two people, enabling easy correction of positioning errors and reducing material usage, while ensuring reliable waterproofing without the need for primer treatment.
Implementation Method 1
an adhesive is first applied to the building or part of a building to be sealed
Data Source
AI summary
The present invention relates to a method for sealing a building or a part thereof in the wall and/or cellar region, wherein a) initially an adhesive is applied on the building or building part to be sealed, b) subsequently a first sealing sheet is pressed onto the adhesive, and c) finally at least one additional sealing sheet is pressed onto the adhesive, wherein the second and every additional sealing sheet is positioned edge to edge with the respectively adjacent sealing sheet, and a system for implementing the method, comprising a water-based bitumen adhesive and a sealing sheet, which has at least a cover layer and a contact layer.