Flexible Support Screen for Tile Floor Systems
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Solution Overview
Problem
Existing tile floor constructions for exterior applications, such as decks and patios, face challenges due to the inflexibility of traditional tile installations, which lead to issues like cracked tiles, moisture accumulation, and increased structural height, especially on uneven wooden or concrete subfloors that expand and contract with humidity changes.
Innovation Solution
A flexible support screen and tile spacers are used to create a compressible and adjustable system that allows tiles to float on top of the subfloor, absorbing movement and providing drainage, eliminating the need for rigid adhesives and reducing the risk of damage from structural shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional rigid adhesive bonding is used to attach tiles to the subfloor, then the tiles are securely fixed, but the tiles cannot move in response to subfloor expansion and contraction, resulting in cracked tiles and mortar
Solution Approach 1:
A flexible support screen is introduced as an intermediary layer between the rigid tile assembly and the subfloor. This screen absorbs differential movement through its flexibility while maintaining tile support, preventing cracks without requiring rigid adhesive bonding. The screen acts as a mediator that decouples the tile layer from subfloor expansion/contraction forces.
Solution Approach 2:
The flexible support screen functions as a thin flexible film that conforms to subfloor irregularities and accommodates movement. This flexible barrier layer allows the tile assembly to remain intact while adapting to subfloor dimensional changes, resolving the contradiction between secure fixation and movement capability.
2Reliability
If decoupling membranes are used to separate tile adhesive from the structural base, then tile cracking is reduced, but the installation becomes complicated, expensive, and labor intensive
Solution Approach 1:
The flexible support screen combines multiple functions into a single integrated layer: it provides decoupling from the subfloor, supports the tile assembly, accommodates movement, and conforms to irregular surfaces. This consolidation eliminates the need for separate decoupling membranes and complex adhesive applications, reducing installation complexity while maintaining crack resistance.
3Strength
If thick cementitious pavers are used for floating installations, then tile strength is sufficient for exterior applications, but the overall height of the deck increases significantly
Solution Approach 1:
The flexible support screen enables the use of thinner tile materials in floating installations by providing the necessary support and movement accommodation. This eliminates the need for thick cementitious pavers, reducing the overall assembly height while maintaining sufficient structural strength for exterior applications.
4Adaptability or versatility
If rigid pedestals or compacted sand bases are used for floating installations, then accommodation of movement is achieved, but tiles may still wobble, chip, and break, and moisture accumulates between tiles and subfloor
Solution Approach 1:
The flexible support screen provides continuous support across the entire subfloor surface, eliminating the discrete support points of pedestals that cause tile wobble. The flexible film conforms to surface irregularities and distributes loads evenly, preventing chips and breaks while accommodating movement through its inherent flexibility rather than rigid support points.
Solution Approach 2:
The flexible support screen replaces the mechanical pedestal system with a continuous flexible membrane system. This substitution eliminates the wobble associated with discrete support points while maintaining movement accommodation capability through the screen's flexibility and conformability.
5Ease of manufacture
If tiles are installed directly onto wooden subfloor without flexible support, then installation is simpler, but moisture accumulates between tiles and deck boards, causing rapid deterioration of the wooden subfloor
Solution Approach 1:
The flexible support screen acts as a moisture barrier film that prevents direct contact between the tile assembly and wooden subfloor, blocking moisture transfer while maintaining installation simplicity. The screen's continuous coverage eliminates the moisture accumulation problem without requiring complex drainage systems or removal of the wooden subfloor.
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 system enables the installation of tiles on uneven surfaces without cracking or chipping, while allowing for water drainage and maintaining a stable, aesthetically pleasing surface, reducing the overall height impact and installation complexity.
Implementation Method 1
The flexible support screen has a variable rate of compression upon receiving a force directed upon either the top surface or the bottom surface of the compressible body
Implementation Method 2
a plurality of channels extending between the top surface and the bottom surface. The plurality of channels are configured to receive a fluid from at least one upper opening of the top surface and direct the fluid through the compressible body to exit through at least one of the lower openings of the bottom surface
Data Source
AI summary
Flexible support screens and tile spacers for floating tile floor systems are described herein. The flexible support screens include a compressible body that is configured to engage a top surface of a structure. The compressible body has a plurality of channels configured to direct a fluid through the compressible body. The flexible support screen has a variable rate of compression upon receiving a force directed upon either the upper surface or the lower surface. The adhesive tiles spacers have a first side surface for engaging a first tile and a second side surface opposed to the first side surface for engaging a second tile. The adhesive spacers are configured to be compressible to absorb movement of the first tile and the second tile towards or away from each other.