Building Panels With Integrated Channels for Spacer-Free Ventilation

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Solution Overview

Problem

Exterior siding systems require spacers like furring strips to create gaps for airflow and drainage, which increase material and labor costs and affect the appearance of the panels.

Innovation Solution

Panels with integrated voids, turbulence-inducing elements, and undulating portions are molded to promote airflow and drainage without spacers, allowing direct contact with the mounting surface for improved ventilation and reduced installation costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If spacers (furring strips) are placed between panels and exterior wall to create gaps for airflow and drainage, then ventilation and drainage functions are improved, but material costs and labor costs increase

Engineering Contradiction:
Improveventilation and drainage functionVSAvoidmaterial and labor cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent integrates the spacer function directly into the panel structure by forming channels and cavities within the panel itself. The panel includes a front surface, rear surface, and integrated channels that extend from the rear surface to the front surface, eliminating the need for separate spacer components. This merging of functions reduces both material costs (fewer components) and labor costs (simpler installation).

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The panel is designed to perform multiple functions: it provides structural coverage, creates ventilation channels, facilitates drainage, and maintains spacing from the exterior wall all through a single component. The integrated channels serve both ventilation and drainage purposes, making the panel a multi-functional element that replaces multiple separate components.

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

2Reliability

If spacers are used to create gaps between panels and exterior wall, then airflow channel is formed, but the aesthetic appearance is affected and panels cannot be placed close to the mounting surface

Engineering Contradiction:
Improveairflow channel functionVSAvoidaesthetic appearance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The airflow channel function is merged into the panel structure itself through integrated channels and cavities. This allows the panel to maintain close contact with the mounting surface for aesthetic purposes while still providing functional airflow paths through the panel's internal geometry rather than requiring external spacers that create visible gaps.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The panel features localized channels and cavities positioned specifically to maintain aesthetic appearance from the exterior while providing airflow functions. The channels are integrated within the panel thickness, allowing the front surface to be flush or near-flush with the mounting surface while airflow occurs through controlled paths within the panel structure.

Inventive Principle:
Principle #3Local quality

3Reliability

If spacers are installed to promote airflow and drainage, then ventilation performance is improved, but installation complexity and time increase

Engineering Contradiction:
Improveventilation performanceVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The ventilation and drainage functions are merged into the panel's integrated channel structure, eliminating the need for separate spacer installation steps. The channels are formed as part of the panel manufacturing process, so installation involves simply mounting the panels to the exterior wall without additional components, significantly reducing installation time and complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The airflow channels and drainage paths are pre-formed during panel manufacturing rather than being created during installation. The channels are integrated into the panel structure before installation, so the ventilation performance is ready immediately upon panel installation without requiring additional on-site construction or assembly steps.

Inventive Principle:
Principle #10Preliminary action

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

Eliminates the need for spacers, enhancing ventilation and drainage while reducing material and labor costs, and providing a better aesthetic appearance by allowing panels to be placed closer to the mounting surface.

Implementation Method 1

The channels are configured to promote airflow between the panels and the exterior wall

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 2

The notched portion is contoured toward the outer surface, away from the reference plane, such that the notched portion defines a turbulence-inducing element

Methodology Applied
Scientific EffectTurbulence: Turbulence

Data Source

PatentUS12454832B2Panel for attachment to a mounting surface of a building structure and method of making the same
Publication Date: 2025.10.28 WESTLAKE ROYAL BUILDING PRODUCTS INC
  • US12454832B2 patent drawing
  • US12454832B2 patent drawing
  • US12454832B2 patent drawing

AI summary

A panel is configured for attachment to a mounting surface of a building structure. The panel includes a first end surface and a second end surface, spaced from each other along a longitudinal axis; a top edge surface and a bottom edge surface, spaced from each other and offset from the longitudinal axis; and an inner surface and an outer surface, opposed to each other and extending from the first end surface and the second end surface. The inner surface includes a contact portion and a contour portion. The contact portion is disposed on a reference plane. The contour portion is contoured toward the outer surface, away from the reference plane, such that the contour portion defines a channel. The channel extends along at least a portion of a length of the panel, between the first end surface and the second end surface.