Subfloor drainage panel
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Solution Overview
Problem
Existing subflooring systems lack effective moisture drainage and air circulation capabilities, particularly in basement environments where moisture and cold concrete pose challenges, leading to potential mold, rot, and temperature control issues.
Innovation Solution
A subfloor drainage panel with a multi-component design featuring a lower member with frustoconical projections and drainage holes, an upper member with interlocking tongue and groove joints, and an optional ventilation manifold for air circulation, allowing for efficient moisture drainage and air exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed subfloor system is used on concrete foundation, then structural stability is improved, but moisture drainage capability deteriorates
Solution Approach 1:
The subfloor system is segmented into multiple functional layers: an upper subfloor panel, a drainage layer with channels and voids below it, and a vapor barrier at the concrete interface. This segmentation allows each layer to perform its specific function - the upper panel provides structural stability while the drainage layer below captures and redirects moisture away from the subfloor, preventing accumulation without compromising overall structural integrity.
2Object-generated harmful factors
If projections are added to drain moisture, then moisture drainage is improved, but structural strength deteriorates
Solution Approach 1:
The drainage projections are strategically positioned only in specific locations where moisture accumulation is most problematic, rather than uniformly across the entire subfloor. The projections create localized drainage channels and voids that capture and redirect moisture away from critical areas, providing effective moisture management while minimizing the overall volume of material removed and preserving the structural strength of the subfloor panel.
3Object-generated harmful factors
If a multi-component design is used for drainage, then moisture drainage capability is improved, but device complexity increases
Solution Approach 1:
The drainage system merges multiple functions into a single integrated structure: the projections serve both as structural support elements and as moisture collection channels, while the voids between projections simultaneously provide drainage pathways and accommodate vapor barrier installation. This merging of functions reduces the need for separate drainage components, simplifying the overall system while maintaining effective moisture drainage capability.
4Object-generated harmful factors
If drainage holes are created in projections, then moisture drainage is improved, but manufacturing precision requirements increase
Solution Approach 1:
The drainage holes in the projections are designed to be self-forming during the molding process, utilizing the natural flow of molten material to create appropriately sized and positioned holes without requiring complex secondary operations. The mold design incorporates features that automatically generate the drainage holes as the material sets, reducing the need for high-precision post-manufacturing adjustments while ensuring consistent drainage functionality across all produced components.
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 panel effectively drains moisture, prevents damage, and enhances temperature control by allowing air circulation, making it suitable for various flooring types and environments while being cost-effective and easy to manufacture.
Implementation Method 1
A subfloor drainage panel for draining moisture or circulating air to or from a surface
Implementation Method 2
allowing moisture drainage and air circulation between the flooring surface and the surface
Implementation Method 3
ventilation manifold...to circulate air to or from an area between the upper member and the surface
Data Source
Figure 1~8
Figure 3~4
Figure 5~6
AI summary
A subfloor drainage panel is provided for draining moisture from a floor. The subfloor drainage panel has an upper member, a lower member attached to the upper member, and an intermediate member located in the lower member. The lower member includes a plurality of first projections extending away from the upper member, a plurality of second projections extending toward the upper member, and at least one drain hole defined in the first projections. The first projections support the subfloor drainage panel on a surface. The intermediate member has a plurality of openings each configured to receive therethrough a portion of one of the second projections so as to contact and support the lower member. The lower member is configured to define a gap between a portion of the lower member and the surface, with the gap being configured to allow fluid to pass therethrough.