Filter Edge Strip for Floor Construction Microbial Emission Control
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Solution Overview
Problem
Current floor constructions lack a proactive solution to prevent microbial emissions from mold infestations, which can lead to health issues, as they primarily rely on aftercare measures that expose occupants to harmful microorganisms before intervention.
Innovation Solution
Incorporating a filter edge strip with a combination of microporous and nanoporous materials, potentially including activated carbon, to act as a multi-stage filter that prevents microbial and chemical emissions from entering the room air by being integrated into the floor construction during its installation, effectively decoupling the floor from the wall and serving as a mechanical and chemical barrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional edge strip is used for mechanical decoupling, then the floor construction can accommodate thermal expansion and contraction, but microbial emissions from mold infestations in the subfloor can enter the room air through the edge joint
Solution Approach 1:
The edge strip combines mechanical decoupling function with filtration function by using composite material structure: a foam core for mechanical compliance and thermal insulation, covered with a breathable fabric layer containing adsorbent particles for microbial emission filtration. This resolves the contradiction by integrating multiple functions into a single composite component rather than adding separate systems.
Solution Approach 2:
The edge strip is designed to perform multiple functions simultaneously: mechanical decoupling of floor from wall, thermal insulation, vapor permeability, and filtration of microbial emissions. This multi-functionality resolves the contradiction by eliminating the need for separate filtration systems while maintaining all necessary edge strip functions.
2Reliability
If the edge strip is made highly effective as a filter, then microbial emissions are retained, but water vapor exchange between subfloor and room air is restricted
Solution Approach 1:
The filter material has different pore size distributions at different locations: larger pores at the bottom for vapor permeability and smaller pores at the top for efficient microbial emission filtration. This spatial variation in local quality resolves the contradiction by allowing vapor exchange through lower sections while blocking emissions through upper sections.
Solution Approach 2:
The edge strip uses porous foam material with controlled porosity (30-70%) and pore size distribution, combined with breathable fabric containing adsorbent particles. The porous structure allows water vapor molecules to pass through while the adsorbent particles trap microbial emissions, resolving the contradiction between vapor exchange and filtration efficiency.
3Reliability
If a multi-stage filter with different pore sizes is used, then both particle and gaseous emissions are filtered effectively, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple filtration stages into a single integrated edge strip component by embedding adsorbent particles within the foam matrix and covering with breathable fabric. This consolidation achieves multi-stage filtration (coarse particles through foam structure, fine particles and gases through adsorbent) without requiring separate filter components, assembly steps, or complex manufacturing processes.
Solution Approach 2:
The edge strip uses composite material structure combining foam core, breathable fabric, and adsorbent particles in a single manufactured component. This composite approach achieves sophisticated multi-stage filtration performance while maintaining relative manufacturing simplicity through integrated material fabrication rather than assembly of multiple separate parts.
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 significantly reduces the risk of health issues associated with mold emissions by preventing their entry into the room air, offering a cost-effective preventive measure that avoids costly renovations and health consequences, while maintaining the mechanical decoupling and sound attenuation functions of conventional edge strips.
Implementation Method 1
an area made of conventional insulating foam or fleece with the addition of an adsorbent... which allows water vapor to pass through, but also filters out particulate and gaseous microbial emissions
Implementation Method 2
an area made of conventional insulating foam or fleece with the addition of an adsorbent
Implementation Method 3
which allows water vapor to pass through
Data Source
Figure 1~2D
Figure 3
AI summary
Floor construction with perimeter joint filter, comprising a floor structure and an edge strip (4) which is laid along an edge joint of the floor covering for mechanical decoupling of the floor construction (3) from a wall (1), wherein the edge strip (4) is designed as a filter which retains particulate and gaseous microbial and chemical loads in the subfloor, and a method for laying such a floor construction.