Precursor Flashing Composite for Hinge-Region Waterproof Sealing

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Solution Overview

Problem

Existing roofing systems face challenges in creating efficient and environmentally friendly waterproof seals between roofing membranes and vertical structures, particularly due to the high amount of liquid flashing composition required during installation.

Innovation Solution

A precursor flashing composite comprising a fabric component with pre-cured bodies of varying geometric shapes, allowing for a hinge region that reduces the need for liquid flashing composition during installation, facilitating easier and more efficient sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If liquid flashing composition is applied to create a seal between roofing membrane and vertical structure, then a waterproof seal is formed, but a high amount of liquid flashing composition is required

Engineering Contradiction:
Improvewaterproof sealVSAvoidliquid flashing composition
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The fabric component is pre-formed with pre-cured bodies and hinge regions before installation. This preliminary structuring reduces the amount of liquid flashing composition needed during installation, as the composite already provides structural framework and sealing geometry.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention uses a composite structure combining fabric component with pre-cured bodies (formed from liquid flashing composition) to create a flashing assembly. This composite approach integrates structural and sealing functions, reducing the quantity of liquid flashing composition required compared to using liquid composition alone.

Inventive Principle:
Principle #40Composite materials

2Reliability

If traditional flashing assemblies are used, then waterproof sealing is achieved, but installation complexity and material usage increase

Engineering Contradiction:
Improvewaterproof sealVSAvoidflashing assembly
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention merges the fabric component, pre-cured bodies, and hinge regions into a single integrated precursor flashing composite. This consolidation simplifies the flashing assembly by combining multiple functional elements into one unit that is applied together, reducing installation complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fabric component is segmented into regions with pre-cured bodies and hinge regions, creating a modular structure that simplifies installation. The hinge regions allow the fabric to be folded and positioned easily around vertical structures, reducing the complexity of the overall flashing assembly.

Inventive Principle:
Principle #1Segmentation

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 precursor flashing composite enables easier installation with reduced material usage, providing a waterproof seal while minimizing environmental impact.

Implementation Method 1

applying a liquid flashing composition to the precursor flashing composite, the surface of a vertical structure, and the surface of the roofing membrane to thereby form a water-proof seal

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS20250230662A1A precursor flashing composite and methods of using the same
Publication Date: 2025.07.17 AMRIZE TECHNOLOGY SWITZERLAND LLC
  • US20250230662A1 patent drawing
  • US20250230662A1 patent drawing
  • US20250230662A1 patent drawing

AI summary

A precursor flashing composite comprising (i) a fabric component having a first planar surface and a second planar surface; (ii) a first pre-cured body disposed on a first portion of the first planar surface of the fabric component, wherein the first pre-cured body has a first geometric shape; (iii) a second pre-cured body disposed on a second portion of the first planar surface of the fabric component, wherein the second pre-cured body has a second geometric shape; and (iv) wherein said first pre-cured body is positioned relative to the second pre-cured body to provide a hinge region between the first pre-cured body and the second pre-cured body.