Composite Roofing Panel with Pre-Attached Membrane Flap

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The installation of polyisocyanurate roofing panels on low-slope roofs is a costly and complex process, requiring multiple steps, exposing workers to hazardous conditions, and increasing the risk of faulty installation.

Innovation Solution

A composite panel design featuring an insulating subpanel with a pre-attached polymer membrane that includes a flap, allowing for easier installation by exposing fastening areas and overlapping joints, thereby reducing the need for on-site membrane application and enhancing installation efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate layers (vapor barrier, polyisocyanurate panels, support panel, thermoplastic membrane) are installed on-site, then waterproofing and insulation functions are achieved, but installation time and labor costs increase significantly

Engineering Contradiction:

Improvewaterproofing functionVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the vapor barrier layer and polyisocyanurate insulating panel into a single integrated composite panel. The vapor barrier is laminated to the insulating panel during manufacturing, eliminating the need for separate on-site installation of these two layers. This merging reduces the number of installation steps while maintaining both waterproofing and insulation functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The vapor barrier and insulating panel are pre-assembled into a composite structure during manufacturing before delivery to the construction site. This preliminary action of combining layers off-site reduces on-site installation complexity and time, while ensuring proper integration of the vapor barrier with the insulating panel.

Inventive Principle:

Principle #10Preliminary action

2Ease of manufacture

If construction workers install multiple layers on-site, then the roofing system is assembled, but workers are exposed to hazardous climate conditions and volatile compounds

Engineering Contradiction:

Improveassembly capabilityVSAvoidhazardous exposure

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The composite panel is manufactured with the vapor barrier and insulating panel already integrated, performing the assembly action before the product reaches the construction site. This eliminates the need for workers to handle and assemble separate layers on-site, reducing their exposure to hazardous conditions and volatile compounds from adhesives.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent extracts the vapor barrier assembly step from the on-site construction process and relocates it to the manufacturing process. By taking out this hazardous assembly operation from the construction environment, workers are protected from exposure to volatile compounds and adverse climate conditions during the assembly process.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If more installation steps are performed on-site, then complete roofing system is achieved, but risk of faulty installation increases

Engineering Contradiction:

Improvewaterproofing functionVSAvoidinstallation quality

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

By merging the vapor barrier and insulating panel into a pre-assembled composite unit, the patent reduces the number of separate installation steps required on-site. Fewer steps mean fewer opportunities for installation errors, while the integrated design ensures proper alignment and integration of the vapor barrier with the insulating panel, maintaining waterproofing reliability.

Inventive Principle:

Principle #5Merging (Combining)

4Temperature

If polyisocyanurate panels are used for insulation, then thermal isolation is achieved, but the installation process becomes complex and costly

Engineering Contradiction:

Improvethermal insulationVSAvoidinstallation process

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent merges the polyisocyanurate insulating panel with the vapor barrier into a single composite panel. This integration maintains the thermal insulation properties of polyisocyanurate while simplifying the installation process by eliminating the need to separately install and coordinate multiple layers, reducing overall system complexity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250075502A1Roofing composite panel and method of installation thereof

Publication Date: 2025.03.06 9485-7489 QUEBEC INC

AI summary

A composite panel, has: an insulating subpanel having a bottom face to be secured to a substrate and a top face opposed to the bottom face, the top face and the bottom face delimited by interconnected edges of the insulating subpanel; a polymer membrane adhered to a portion of the top face, the polymer membrane including a flap, the flap extending from a membrane edge of the membrane to a junction between the flap and a remainder of the polymer membrane, the junction being recessed inwardly from an edge of the interconnected edges of the insulating subpanel such that a portion of the top face of the insulating subpanel is free from attachment to the polymer membrane, a length of the flap extending from the membrane edge to the junction being greater than a distance between the edge of the interconnected edges and the junction.