Insulating Wall Element Lightweight Concrete Composite
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Solution Overview
Problem
Existing insulating facade panels face issues with algae and fungal growth due to high humidity, mechanical instability, and the need for additional sealing steps, which can lead to condensation and damage from weather conditions.
Innovation Solution
A composite insulating wall element comprising a layer of thermal insulation material connected to a lightweight concrete layer with a thickness of 10-40 mm and bulk density of 600-2000 kg/m3, where the lightweight concrete layer forms a weatherproof and impact-resistant outer layer, eliminating the need for a complex plaster seal and enhancing thermal insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a thin plaster seal (4-6 mm) is applied to insulating panels, then the facade achieves a sealed appearance, but condensation and fungal growth occur due to insufficient thermal mass and humidity buildup
Solution Approach 1:
The patent applies composite materials by combining insulating panels with a lightweight concrete layer to create a facade system that integrates both insulation and structural/protective functions. This composite structure eliminates the need for separate thin plaster seals while preventing condensation and fungal growth through the thermal mass and breathability of the lightweight concrete.
Solution Approach 2:
The patent changes the physical parameters of the facade system by using lightweight concrete with specific bulk density (600-2000 kg/m³) and thickness (10-40 mm) to alter thermal conductivity, humidity regulation, and surface temperature characteristics. These parameter changes prevent the supercooling effect that leads to condensation in traditional thin-plaster systems.
2Ease of manufacture
If a thin plaster layer is used for sealing, then application is simple, but mechanical stability is insufficient and damage occurs from weather and animal impact
Solution Approach 1:
The lightweight concrete layer provides a mechanically stable, impact-resistant outer layer that protects the insulating panel from weather, animals, and physical damage. This composite structure maintains ease of application while significantly improving strength and durability compared to thin plaster layers.
Solution Approach 2:
The patent replaces the fragile, damage-prone thin plaster layer with a more durable lightweight concrete layer that can withstand weathering and animal impact. While lightweight concrete requires more material, it eliminates the need for continuous maintenance and repair of damaged plaster seals.
3Loss of energy
If highly insulating facade panels are used, then thermal insulation performance improves, but humidity buildup and condensation increase leading to algae and fungal growth
Solution Approach 1:
The patent changes the thermal and humidity parameters of the facade system by using lightweight concrete with optimized bulk density and thickness. This creates a thermal bridge that allows controlled heat flow while the breathable concrete layer regulates humidity, preventing condensation even behind highly insulating panels.
Solution Approach 2:
The lightweight concrete layer acts as an intermediary between the insulating panel and the external environment. It provides thermal mass to moderate temperature fluctuations and breathability to regulate moisture, mediating the interaction between insulation and humidity to prevent condensation.
4Ease of manufacture
If a complex plaster seal is applied to insulating panels, then sealing is achieved, but additional work steps and drying time are required before further facade treatment
Solution Approach 1:
The patent merges the sealing function with the structural outer layer by using the lightweight concrete layer as both the protective facade surface and the sealing element. This eliminates the need for separate plaster sealing steps and associated drying times, allowing direct application of protective or paint layers after concrete curing.
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
The solution provides a durable, sustainable, and thermally efficient facade system that prevents condensation, reduces algae and fungal growth, and offers improved mechanical stability and fire resistance, while allowing for easy assembly and adaptation to site-specific requirements.
Implementation Method 1
the heat flow is directed from the inside to the outside. This means that the surface temperature is always above the adjacent air temperature and no condensation occurs
Implementation Method 2
a layer of thermal insulation material and a layer of lightweight concrete as a composite panel
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 3
AI summary
The present invention relates to an insulating wall element for cladding surfaces and, in particular, facades, comprising a composite panel consisting of a thermal insulation layer and a lightweight concrete layer. The invention further comprises a wall system using the insulating wall elements and a method for constructing an insulating panel facade using the wall elements according to the invention.