Variable Density Mesh Vent with Integral Water Barrier

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Solution Overview

Problem

Traditional rollable mesh ridge vents require additional water-sealed ridge cap shingles for installation, which can lead to leakage issues and material inefficiency, and existing solutions with integrated water barriers often face delamination or material failure over time.

Innovation Solution

A rollable mesh ridge vent with an integral water barrier formed by glass fibers, asphalt coating, or a dense fiber layer within the mat, providing enhanced moisture resistance while maintaining ventilation efficiency, and featuring variable fiber density for reduced material usage and improved installation resilience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional mesh ridge vents are used, then ventilation is provided, but additional water-sealed ridge cap shingles are required which can lead to leakage issues and material inefficiency

Engineering Contradiction:
Improvewater leakage preventionVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the ventilation function and water barrier function into a single integrated ridge vent assembly. The water barrier layer is bonded directly to the mesh vent body, eliminating the need for separate ridge cap shingles and reducing installation complexity while preventing water leakage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ridge vent assembly performs multiple functions simultaneously: it provides ventilation through the mesh structure while the integrated water barrier layer prevents water penetration. This multi-functional design eliminates the need for additional separate components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If existing solutions with integrated water barriers are used, then water resistance is improved, but delamination or material failure occurs over time

Engineering Contradiction:
Improvewater barrier performanceVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent uses a composite structure consisting of a mesh vent body made from synthetic fibers and a water barrier layer made from waterproof materials. This composite construction provides both ventilation and water resistance while maintaining structural integrity over time.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent modifies the physical and chemical parameters of the materials used, selecting synthetic fibers with appropriate properties for the mesh structure and waterproof materials with suitable characteristics for the water barrier layer. The bonding agent is also selected to provide long-term adhesion resistance.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If constant fiber density throughout the mesh vent is used, then structural uniformity is achieved, but more material is required than necessary

Engineering Contradiction:
Improvestructural uniformityVSAvoidmaterial efficiency
Core Design Contradiction:
Stability of the object's compositionVSLoss of substance

Solution Approach 1:

The patent implements variable fiber density within the mesh vent body, with different regions having different fiber concentrations optimized for their specific functions. This local quality variation reduces overall material usage while maintaining structural integrity and ventilation performance.

Inventive Principle:
Principle #3Local quality

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 provides effective water barrier integration within the mesh vent, reducing material needs, preventing water leakage, and ensuring long-term durability without delamination, while maintaining ventilation performance and allowing for nail gun installation without adapters.

Implementation Method 1

randomly aligned synthetic fibers joined with binding agents and cured to provide an air-permeable mat

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS9428916B2Mesh vent with varying density or integral moisture barrier
Publication Date: 2016.08.30 BMIC LLC
  • US9428916B2 patent drawing
  • US9428916B2 patent drawing
  • US9428916B2 patent drawing

AI summary

A mesh ridge vent has an air permeable layer formed of randomly aligned synthetic fibers that are opened and blended, randomly aligned into a web by airflow, joined by phenolic or latex binding agents, and heat cured to produce an air-permeable varying mesh. A moisture barrier may be integrally formed above the air permeable layer and may be defined by a coating or by a layer of fibers that is sufficiently dense to inhibit penetration of water into the web. The mesh ridge vent has edge portions and a central portion and the edge portions may be more dense and thicker while the central portion may be less dense and thinner than the edge portions.