Ridge Vent With Central Air Void For Enhanced Flow
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Solution Overview
Problem
Traditional ridge vents lack sufficient thickness and airflow efficiency, which can lead to reduced ventilation performance and potential ice dam formation in attics during winter months.
Innovation Solution
A ridge vent design comprising multiple entangled net layers with varying thicknesses and filter cloth layers, creating a central air void for enhanced airflow and rigidity, fabricated by laminating standard entangled net mats to achieve desired dimensions and flow paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional single-layer ridge vents are used, then the structure is simple and easy to manufacture, but the airflow efficiency and ventilation performance are insufficient
Solution Approach 1:
The ridge vent is divided into multiple functional layers: an air void layer for airflow, filter cloth layers for debris filtration, and adhesive layers for bonding. This segmentation allows each layer to perform its specific function optimally, improving overall ventilation performance while maintaining manufacturability through standardized layer assembly
Solution Approach 2:
The ridge vent uses composite construction combining different materials: porous foam or air-filled voids for ventilation, non-woven filter cloth for filtration, and adhesive layers for structural integrity. This composite approach enhances airflow efficiency and durability without significantly complicating the manufacturing process
2Strength
If traditional thin ridge vents are used, then the material usage is low and cost is reduced, but the rigidity and structural integrity are insufficient
Solution Approach 1:
The ridge vent structure implements local quality by concentrating material thickness where needed for rigidity (the filter cloth and adhesive layers) while maintaining an air void or porous structure where airflow is prioritized. This allows the vent to achieve sufficient structural integrity without uniformly increasing material thickness across the entire product
Solution Approach 2:
The design extracts the air void or porous foam core from the structure, placing it centrally to provide rigidity through geometric configuration rather than solid material. This allows the vent to maintain structural integrity with less material by relying on the structural efficiency of the hollow or porous configuration
3Object-affected harmful factors
If insufficient airflow is provided, then the vent structure remains simple, but ice dams form in winter and cooling loads increase in summer
Solution Approach 1:
The ridge vent incorporates porous foam or air-filled voids as the core structural element, which provides both structural rigidity and excellent airflow characteristics. The porous structure allows air to pass through efficiently while maintaining vent shape and position, directly addressing the airflow efficiency needed to prevent ice dams and reduce cooling loads
Solution Approach 2:
The filter cloth is positioned at the edges rather than covering the entire surface, creating a three-dimensional structure with airflow channels in the central dimension. This dimensional arrangement maximizes airflow efficiency by dedicating the central area to air movement while using edge filter cloth only for debris prevention
Data Source
AI summary
A ridge vent comprising: (a) a first filter clothe layer extending along a predetermined width and a predetermined length; (b) a first entangled net layer extending along the predetermined width and the predetermined length; and, (c) a second entangled net layer operatively coupled to the first entangled net layer, the second entangled net layer extending along the predetermined length and a first portion and a second portion of the predetermined width so as to provide an air void in a widthwise direction within the second entangled net layer that extends along the predetermined length.