Internal Wall Insulation with Moisture-Regulating Adhesive Layer
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Solution Overview
Problem
Existing internal insulation systems for building exterior walls face issues with moisture condensation leading to reduced thermal insulation capacity and mold growth, particularly when a vapor barrier is damaged or not used, and capillary-active insulation materials require thicker layers to compensate for moisture absorption, resulting in space loss.
Innovation Solution
A method and system utilizing a capillary-inactive, water vapor-permeable thermal insulation board attached with an adhesive that forms a moisture-regulating intermediate layer, eliminating the need for a vapor barrier and maintaining thermal insulation performance by temporarily storing and releasing moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vapor barrier is applied to prevent water vapor diffusion, then moisture condensation is prevented, but the system becomes more complex and vulnerable to damage
Solution Approach 1:
The patent removes the vapor barrier component entirely from the insulation system. Instead of applying a separate vapor barrier layer, the system uses a diffusion-open thermal insulation panel that inherently manages moisture through its capillary structure, eliminating the need for additional vapor barrier materials and their associated installation complexity
Solution Approach 2:
The thermal insulation panel performs multiple functions simultaneously: it provides thermal insulation, manages moisture diffusion, and prevents condensation without requiring a separate vapor barrier. The capillary-active structure of the panel handles both insulation and moisture regulation in a single component
2Reliability
If capillary-active thermal insulation material is used to allow quick drying, then mold growth is prevented, but thermal insulation capacity decreases due to moisture absorption
Solution Approach 1:
The patent employs a diffusion-open thermal insulation panel with a specific porous capillary structure that allows controlled moisture transport. The porous structure enables moisture to be quickly evacuated through capillary forces while maintaining sufficient thermal insulation performance, avoiding the trade-off between moisture management and insulation capacity
Solution Approach 2:
The patent optimizes the capillary pore size distribution and structural parameters of the thermal insulation panel to achieve optimal moisture transport while maintaining thermal performance. By carefully controlling the pore structure parameters, the system prevents condensation and mold growth without requiring excessive thickness that would compromise space efficiency
3Loss of energy
If thermal insulation layer thickness is increased to compensate for moisture absorption, then insulation performance is maintained, but available interior space is reduced
Solution Approach 1:
The patent achieves superior moisture management through optimized capillary pore structure parameters, allowing the use of a thinner insulation layer that maintains both thermal performance and moisture control. The enhanced capillary activity enables effective moisture evacuation at reduced thickness, preserving interior space
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 approach prevents mold formation and maintains thermal insulation without the need for a vapor barrier, allowing for thinner insulation layers and improved indoor climate by regulating moisture through vapor diffusion during dew and evaporation periods.
Implementation Method 1
The adhesive used here is used at the same time to form a moisture-regulating intermediate layer which is able to absorb moisture, in particular condensation water that has formed, store it temporarily and release it again
Implementation Method 2
When the dew period is over, i.e. there is a vapor pressure gradient that promotes vapor diffusion from the outside inwards, the moisture temporarily stored in the moisture-regulating intermediate layer is discharged back into the room as water vapor
Implementation Method 3
the water vapor diffusion that takes place through the outer wall of a building to compensate for a regular vapor pressure gradient between the inside and outside
Implementation Method 4
at least one capillary-inactive, water vapor-permeable thermal insulation board is used to form a thermal insulation layer
Data Source
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AI summary
The method involves fastening a capillary-inactive, water vapor-permeable thermal insulation plate (3) by utilizing an adhesive (4) at an inner side (5) of an exterior wall (1) of a building for formation of a heat insulating layer (2). The adhesive is simultaneously utilized for formation of a moisture regulating intermediate layer that temporarily stores and provides moisture i.e. precipitated condensate, where the intermediate layer is evenly distributed on a to-be-glued surface (7) of the wall. An independent claim is also included for a system for internal insulation of an exterior wall of a building.