Fibre Cement Cladding with Beveled V-Groove Edges

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Wood cladding elements are difficult and expensive to install, and they have limited durability, which poses challenges in achieving both aesthetic and functional requirements in building construction.

Innovation Solution

A cladding system comprising fibre cement cladding elements with a v-groove design featuring chamfered or beveled edges, where the arcuate surfaces reduce the apparent variation in v-groove thickness, allowing for thinner, lighter elements that maintain wind load resistance and aesthetic appeal without the need for specialized fasteners.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If wood cladding elements are used to protect and improve aesthetic qualities of walls, then aesthetic appearance is improved, but installation difficulty and cost increase

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidinstallation difficulty
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The cladding element is divided into distinct functional features: a front face with V-groove design for aesthetics, a rear face for installation, and intermediate chamfered edges that enable self-alignment during installation. This segmentation allows each feature to optimize its specific function while simplifying the overall installation process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cladding element employs asymmetric V-groove profiles and chamfered edges that create a specific interlocking pattern. The V-groove at an angle to the long axis creates a distinctive aesthetic while the asymmetric chamfer configuration provides directional guidance for installation, reducing the need for specialized fasteners and tools.

Inventive Principle:
Principle #4Asymmetry

2Shape

If wood cladding elements are used to protect walls, then aesthetic qualities are improved, but durability is limited

Engineering Contradiction:
Improveaesthetic appearanceVSAvoiddurability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The patent specifies that the cladding element may be formed from composite materials such as fibre cement, which combines the aesthetic qualities required for wall protection with superior durability and water resistance compared to traditional wood. This composite material maintains the V-groove aesthetic while providing enhanced longevity and weather resistance.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent modifies the material parameters by specifying fibre cement or other durable composite materials instead of traditional wood. This parameter change in material composition maintains the aesthetic appearance through V-groove design while significantly improving durability, water resistance, and resistance to weathering and biological degradation.

Inventive Principle:
Principle #35Parameter changes

3Strength

If thicker cladding elements are used to increase wind load resistance, then strength is improved, but weight increases

Engineering Contradiction:
Improvewind load resistanceVSAvoidelement weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent employs curved V-groove profiles and arcuate surfaces that optimize structural strength while minimizing material usage. The curved geometry distributes stresses more effectively than flat surfaces, allowing thinner elements to achieve equivalent or superior wind load resistance. This curvature-based design reduces material requirements and consequently reduces weight.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent changes the geometric parameters by specifying V-groove angles between 30-45 degrees and specific chamfer dimensions that optimize the strength-to-weight ratio. These parameter optimizations allow the use of thinner, lighter materials while maintaining or improving wind load resistance through enhanced structural geometry rather than increased material thickness.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11091917B2Cladding element
Publication Date: 2021.08.17 JAMES HARDIE TECH LTD
  • US11091917B2 patent drawing
  • US11091917B2 patent drawing
  • US11091917B2 patent drawing

AI summary

A cladding element, for use in a building envelope, comprising a first face, a second face and a plurality of edges. One or more of the plurality of edges includes a mating feature configured to resist moisture passage between cladding elements when the cladding elements are installed on a wall or other structure. The mating features of each cladding element including one or more beveled edges designed to improve mating between the cladding elements and the overall aesthetic appearance of the mating interface between adjacent cladding elements when installed on a wall or other structure.