Spray-Applied Polymer Matrix for Lightweight Green Roofs
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Solution Overview
Problem
Current green roof and surface systems face challenges in achieving even coverage, economic viability, and lightweight installation due to weight limitations, particularly with multiple layers and obstructions on commercial and residential buildings, which renders them unsuitable for many structures.
Innovation Solution
A proprietary mixture of soil-like media and a special polymer, referred to as the 'Matrix', is used to create a lightweight, even, and economically viable growing surface by mixing dry ingredients with hot water and a bio-friendly polymer, which can be efficiently applied using specialized equipment to cover roofs and other surfaces, including those with obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple layers of growing media are used to provide sufficient depth for plant growth, then plant growth capability is improved, but the overall weight of the system increases beyond structural limits
Solution Approach 1:
The patent changes the physical and chemical parameters of the growing media by incorporating a hydrophilic polymer that can absorb and retain water. This allows the media to maintain sufficient moisture content for plant growth at reduced depths, thereby decreasing the overall weight while preserving plant growth capability
Solution Approach 2:
The patent creates a composite growing media system by combining traditional soil-like materials with a hydrophilic polymer. This composite structure provides both the mechanical support needed for plants and the water retention properties that reduce the required media depth and overall system weight
2Ease of manufacture
If conventional installation methods are used to apply growing media, then material application is simple, but even coverage and economic viability are not achieved
Solution Approach 1:
The patent employs a spray application system that uses pneumatic principles to atomize and distribute the growing media mixture. This spray method ensures even coverage across the roof surface while maintaining economic viability through efficient material application and reduced waste
3Area of stationary object
If traditional green roof systems are installed on buildings with vents and obstructions, then complete surface coverage is attempted, but installation difficulty increases significantly
Solution Approach 1:
The spray application system allows the growing media to be applied as a fluid that can flow around and over obstructions such as vents and air conditioners. This pneumatic-hydraulic application method enables complete surface coverage including difficult-to-reach areas, while significantly reducing installation difficulty compared to manual placement methods
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 Matrix solution allows for a lightweight, even, and aesthetically pleasing green roof or surface system that can be installed on various structures, overcoming weight and coverage issues, while maintaining water retention and supporting plant growth, thus addressing the limitations of existing systems.
Implementation Method 1
The polymer is hydrophilic and will absorb and retain water
Implementation Method 2
The mixture of soil like media and a polymer will hereafter be called a Matrix or the Matrix
Implementation Method 3
Green roof or other surfaces serve several purposes for a building or landscape, such as absorbing rainwater, providing insulation
Data Source
AI summary
The invention taught is a method and apparatus to mix a special polymer, hot water or other hot water material containing additives and a special mixture of dry growing substances mixed in a particular way so that they may be applied to structures such as to ceilings, walls, and any grade of vertical slants, commercial roofs, courtyards, indoor and outdoor applications. The purpose is to coat any surface and grow any plant for any reason be it erosion control, beautification of an area. The invention would help in reforestation after fires and such. This invention has a wide range of applications and so it is impossible to limit it to just one of these applications. Green parking lots and green areas that before could not be made green is just one area for the invention.