Cladding Element with Protruding Profile for Self-Cleaning

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Masonry construction is expensive, time-consuming, and prone to dirt and debris accumulation in joints, with existing cladding elements also facing issues of water permeation and aesthetic limitations.

Innovation Solution

A cladding element with a profiled portion simulating a masonry weather joint, featuring a recessed portion and an angled portion that creates a self-cleaning functionality by minimizing dirt and debris accumulation through an acute angle design, enhancing shadow zone contrast and aesthetic appeal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a cladding element uses a profiled portion to simulate a masonry joint, then aesthetic appearance is improved, but dirt and debris accumulation increases

Engineering Contradiction:

Improveprofiled portion shapeVSAvoiddirt and debris accumulation

Core Design Contradiction:

ShapeVSObject-generated harmful factors

Solution Approach 1:

Instead of creating a recessed profile that mimics traditional masonry joints (which causes dirt accumulation), the invention inverts the approach by using a protruding profile that extends outward. This inversion prevents dirt and debris from settling in the joint area while still providing the desired aesthetic appearance of simulated masonry joints.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The invention converts the potential harm of a profiled surface (which normally creates shadow zones that attract dirt) into a benefit by designing the profile to create a self-cleaning effect. The specific geometry of the profiled portion causes water and debris to be directed outward, turning what would be a dirt-trapping feature into a self-cleaning mechanism.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Shape

If a cladding element uses a recessed profile to simulate a masonry joint, then aesthetic contrast is improved, but water permeation increases

Engineering Contradiction:

Improvejoint profileVSAvoidwater resistance

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The invention inverts the traditional recessed joint profile into a protruding profile. This inversion changes the water flow dynamics from a configuration where water can pool and penetrate into recesses, to one where water is directed away from the joint area, thereby improving water resistance while maintaining aesthetic contrast.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If traditional masonry construction is used to provide durable joint finishing, then durability is improved, but construction time and cost increase

Engineering Contradiction:

Improvejoint durabilityVSAvoidconstruction speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The invention merges the aesthetic and protective functions of masonry joint finishing into a single integrated cladding element. The profiled portion is formed as part of the cladding element itself during manufacturing, eliminating the need for separate, time-consuming on-site joint finishing operations while maintaining durability and aesthetic appearance.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The joint profile is pre-formed on the cladding element during manufacturing before installation. This preliminary action eliminates the need for skilled workers to perform complex joint finishing operations on-site, significantly reducing construction time and cost while ensuring consistent quality.

Inventive Principle:

Principle #10Preliminary action

4Shape

If a cladding element uses a profiled surface to simulate classical wood profiles, then aesthetic appearance is improved, but dirt accumulation in low-angle regions increases

Engineering Contradiction:

Improvesurface profileVSAvoiddirt accumulation

Core Design Contradiction:

ShapeVSObject-generated harmful factors

Solution Approach 1:

The invention inverts the traditional approach of creating decorative profiles that recess into the surface. Instead, the profiled portion protrudes outward, which maintains the aesthetic appearance of classical wood profiles while preventing dirt from accumulating in low-angle regions, as the protruding geometry does not create shadow zones where debris can settle.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS9140018B2Cladding element

Publication Date: 2015.09.22 JAMES HARDIE TECH LTD

AI summary

A cladding element (100), for use in a building envelope, comprising a first face (101), a second face (102) and a peripheral edge member, the first face and second face being spaced apart to define an intermediate portion of predetermined thickness (t), the peripheral edge member extending around the intermediate portion. The first face (101) comprises a profiled portion (106) simulating a masonry weather joint aesthetic thereby minimizing dirt and debris accumulation on the profiled portion of each cladding element in a constructed wall section. In addition the profiled portion provides a self-cleaning functionality. The profiled portion also provides an improved shadow zone contrast when arranged in a building array.