Foamed Insulation Elements with Integrated Rear Ventilation Channels

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Solution Overview

Problem

Existing insulation systems for buildings, particularly internal insulation, face challenges such as moisture condensation leading to mold formation and the need for complex rear ventilation structures, which are time-consuming and prone to leaks. Additionally, conventional external insulation methods are ineffective in removing moisture from damp masonry, especially in old buildings.

Innovation Solution

The insulation arrangement features foamed material elements attached directly to the inside of the wall with a condensate converter plaster that converts wall moisture into water vapor, eliminating the need for a separate rear ventilation structure and allowing for easy installation by integrating rear ventilation channels into the insulation elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If conventional insulation materials are used for internal insulation, then thermal insulation is achieved, but moisture condensation occurs leading to mold formation

Engineering Contradiction:
Improveheating energyVSAvoidmoisture condensation and mold
Core Design Contradiction:
Loss of energyVSObject-affected harmful factors

Solution Approach 1:

The insulation system is segmented into multiple functional layers: vapor-permeable insulation material, condensate converter plaster, and rear ventilation structure. This segmentation allows each layer to perform its specific function - the insulation material provides thermal resistance, the plaster converts condensation to vapor, and the ventilation structure removes moist air, collectively preventing moisture accumulation while maintaining thermal insulation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The condensate converter plaster acts as an intermediary between the insulation material and the wall structure. It receives condensation from the insulation material, converts it to water vapor through its special properties, and releases it into the rear ventilation system, thereby preventing direct contact between moisture and the wall while maintaining the insulation function.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If vapor barriers are installed to prevent moisture penetration, then moisture protection is improved, but installation complexity and susceptibility to leaks increase

Engineering Contradiction:
Improvemoisture penetrationVSAvoidvapor barrier installation
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Instead of using impermeable vapor barriers that block moisture, the system inverts the approach by using vapor-permeable materials that allow moisture to pass through. The condensate converter plaster and rear ventilation system actively manage the moisture that penetrates, converting it to vapor and removing it. This inversion transforms the problem of moisture penetration into an opportunity for active moisture management.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The condensate converter plaster possesses self-service properties by automatically converting condensation into water vapor through its special composition and structure. This eliminates the need for complex mechanical vapor barrier systems, as the plaster itself performs the moisture conversion function passively, reducing installation complexity and maintenance requirements.

Inventive Principle:
Principle #25Self-service

3Object-affected harmful factors

If separate rear ventilation structures are installed, then moisture removal is achieved, but construction time and complexity increase

Engineering Contradiction:
Improvemoisture removalVSAvoidconstruction time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The system merges the insulation function and rear ventilation function into a single integrated structure. The insulation elements are designed with built-in ventilation channels and cavities that serve dual purposes: providing thermal insulation and enabling rear ventilation for moisture removal. This eliminates the need for separate ventilation structures, significantly reducing construction time and complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The insulation elements are designed as multi-functional components that simultaneously provide thermal insulation, structural support, and rear ventilation pathways. The same elements that provide thermal resistance also create the necessary cavities and channels for moisture removal, making the system more efficient and faster to install compared to separate systems.

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

4Ease of operation

If conventional flat insulation panels are used, then insulation installation is simplified, but rear ventilation structure construction becomes time-consuming

Engineering Contradiction:
Improveinsulation installationVSAvoidrear ventilation construction
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The invention combines flat, easy-to-install insulation panels with integrated rear ventilation channels within the same component. The insulation panels are designed with built-in cavities and channels that provide rear ventilation functionality without requiring separate construction steps, thus maintaining ease of installation while eliminating time-consuming ventilation structure construction.

Inventive Principle:
Principle #5Merging (Combining)

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

This solution effectively dehumidifies the wall, reduces thermal conductivity, and simplifies the insulation process by eliminating the need for a separate rear ventilation system, while providing efficient moisture removal and improved thermal insulation performance.

Implementation Method 1

suitable for sucking in water from damp masonry and guiding this water or the resulting water vapor through the plaster thickness

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

converts wall moisture into water vapor and releases it as water vapor

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

the insulating elements (1) consist of a foamed material or foam

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 4

heat conduction through the solid can be reduced using suitable materials or increased porosities

Methodology Applied
Scientific EffectHeat conduction reduction: Conduction (thermal)

Data Source

PatentEP2186958B1Insulation element
Publication Date: 2015.09.16 ALZ ULRIKE
  • EP2186958B1 patent drawingFigure 1
  • EP2186958B1 patent drawingFigure 2
  • EP2186958B1 patent drawingFigure 3

AI summary

The invention relates to an insulation arrangement comprising a wall or surface (13), for example an exterior wall, an interior wall, a floor surface, a screed or a roof surface, and a continuous, closed insulation surface (15) arranged on this wall (13), formed from a plurality of insulation elements (1) made of a foamed material or foam, connected to one another via their end faces (9), in particular gas- and/or moisture-tight, characterized in that ventilation means (4) are provided on or in a lower surface (3) of each insulation element (1) or of the insulation surface (15) facing the wall (13) to enable ventilation.a removal of water vapor from the area between the wall (13) and the insulation surface (15) is provided, wherein a condensate converter (25) known per se in the form of a layer of diffusion-open and/or hydrophilic plaster is provided between the insulation surface (15) and the wall (13), which converts condensation and/or masonry moisture escaping from the wall (13) into water vapor and releases it as water vapor, and which draws water from damp masonry and conducts this water or the resulting water vapor through the plaster thickness and releases it to the environment, so that the surface is always dry.