Rollable Acoustic Insulation System for Tiled Floors

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Solution Overview

Problem

Current acoustic insulation systems under tiles are either cumbersome to install, require extensive cutting of rigid plates or generate waste and require significant preparation time for deformable mattresses, leading to inefficiencies in covering large areas and increased construction time.

Innovation Solution

A rollable acoustic insulation system comprising a flexible underlay for acoustic insulation and a pre-cut, rigid underlay for mechanical resistance, which can be easily applied directly under tiles without the need for a mini-screed, reducing installation time and minimizing waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If rigid panels are used for acoustic insulation, then mechanical resistance is provided, but installation becomes lengthy and tedious due to cutting and jointing

Engineering Contradiction:
Improvemechanical resistanceVSAvoidinstallation speed
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The rigid acoustic insulation panels are segmented into smaller modular units that can be easily handled and installed. These segments are designed to fit together like puzzle pieces, eliminating the need for complex cutting and jointing operations while maintaining the overall mechanical resistance of the floor structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention merges the rigid acoustic insulation panels with the adhesive layer into a single integrated system. The adhesive is pre-applied to the panels, combining the bonding function and the structural function into one component, which simplifies installation and eliminates separate jointing operations.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If deformable mat is used for acoustic insulation, then installation time is reduced, but mini-screed preparation generates waste and requires significant water consumption

Engineering Contradiction:
Improveinstallation speedVSAvoidwaste and water consumption
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The invention extracts and eliminates the mini-screed preparation step from the installation process. By using rigid panels with pre-applied adhesive, the system removes the need for on-site mortar mixing and water application, thereby eliminating the associated waste and water consumption while maintaining installation efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The rigid panels are designed as ready-to-install units with pre-applied adhesive that can be directly placed on the substrate. This disposable-like approach eliminates the need for reusable mortar mixing equipment and reduces on-site material waste, as the adhesive is precisely applied only where needed on each panel.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If deformable mat with mini-screed is used, then acoustic attenuation is provided, but drying time of several hours is required before tiling

Engineering Contradiction:
Improveacoustic attenuationVSAvoiddrying time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The adhesive is pre-applied to the rigid acoustic insulation panels during manufacturing, before installation. This preliminary action allows the adhesive to be optimally formulated and applied under controlled conditions, eliminating the need for on-site mixing and drying time. The panels are ready for immediate installation, and tiling can proceed without waiting for mortar drying.

Inventive Principle:
Principle #10Preliminary action

4Object-affected harmful factors

If rigid panels are positioned one after another, then acoustic insulation is provided, but numerous joints create mechanical and acoustic weaknesses

Engineering Contradiction:
Improveacoustic insulationVSAvoidmechanical and acoustic integrity
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The rigid panels are designed with asymmetric interlocking edges that create overlapping joints rather than simple butt joints. This asymmetric design distributes mechanical loads more evenly across the joint interface and reduces acoustic leakage paths, thereby maintaining both mechanical strength and acoustic insulation continuity across the entire floor assembly.

Inventive Principle:
Principle #4Asymmetry

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 provides effective acoustic attenuation and mechanical resistance, allowing for rapid coverage of large areas with reduced installation time and minimal waste, achieving impact sound insulation performance equivalent to existing systems while avoiding the need for additional screed layers.

Implementation Method 1

at least one flexible underlayer providing acoustic insulation

Methodology Applied
Scientific EffectAcoustic attenuation: Acoustic Absorption

Data Source

PatentEP3559371B1Method for making a tiled floor
Publication Date: 2023.09.13 SAINT-GOBAIN WEBER SA
  • EP3559371B1 patent drawingFigure 1~2
  • EP3559371B1 patent drawingFigure 3~4
  • EP3559371B1 patent drawingFigure 4'~5

AI summary

The present invention relates to a method for manufacturing a tiled floor on a substrate to be covered (5) using a soundproofing system in the form of rolls intended for being positioned on a substrate and directly under floor tiles, which is made up of an insulating portion comprising at least one flexible sublayer (2a) providing the soundproofing and at least one other sublayer providing the mechanical strength (2b-l) positioned opposite the floor tiles (4), the two sublayers being rigidly connected to one another.