Modular Stormwater Mat with Perforated Drainage
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Solution Overview
Problem
Current stormwater management systems, such as green roofs, are costly, weight-intensive, and require ongoing maintenance, making them unsuitable for older buildings and vulnerable to mosquito breeding and roof leaks, while also failing to effectively mitigate urban heat islands and handle flash floods.
Innovation Solution
A modular stormwater management system comprising a water retention mat, a rigid frame, and a perforated surface that allows drainage, which is lightweight, easy to install, and maintains air circulation to prevent pooling and mosquito breeding, with optional integration of a breather fabric and solar-powered fans for enhanced evaporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If green roofs are used for stormwater management, then stormwater absorption is improved, but weight and cost increase
Solution Approach 1:
The patent uses a porous water retention mat made of expanded polytetrafluoroethylene (ePTFE) that absorbs and retains stormwater through capillary action and adsorption. The porous structure allows water to be retained without requiring heavy soil or traditional green roof materials, thus achieving stormwater absorption with reduced weight.
Solution Approach 2:
The patent replaces the traditional mechanical green roof system (soil, plants, gravel layers) with a modular system consisting of a porous water retention mat, rigid frame, and perforated surface. This substitution eliminates the need for heavy soil and plant materials while maintaining stormwater management functionality.
2Reliability
If green roofs are used for stormwater management, then stormwater absorption is improved, but maintenance requirements increase
Solution Approach 1:
The patent extracts the biological components (plants, soil) from the stormwater management system, retaining only the functional elements (water retention mat, frame, perforated surface). This extraction eliminates maintenance requirements associated with plant care while preserving the core stormwater absorption function.
Solution Approach 2:
The modular design allows for easy replacement of the water retention mat if needed, using inexpensive materials that can be easily installed and removed. The system is designed to be replaced rather than repaired, reducing long-term maintenance burdens.
3Productivity
If traditional stormwater systems are upgraded to handle increased demand, then stormwater management capacity is improved, but cost increases
Solution Approach 1:
The patent divides the stormwater management system into modular segments consisting of individual water retention mats, rigid frames, and perforated surfaces that can be manufactured separately and assembled on-site. This segmentation enables standardized, cost-effective production and flexible installation configurations, reducing overall system cost while maintaining management capacity.
4Adaptability or versatility
If impermeable surfaces are increased for development, then building capacity is improved, but stormwater runoff increases
Solution Approach 1:
The patent creates a multi-functional surface that combines impermeable building coverage with integrated stormwater management. The water retention mat, rigid frame, and perforated surface work together to absorb, retain, and slowly release stormwater, allowing the same surface to serve both building capacity and runoff mitigation functions simultaneously.
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 modular system effectively absorbs and releases stormwater, reducing installation and maintenance costs, supporting older buildings, discouraging mosquito breeding, and mitigating urban heat islands, while providing a reliable and efficient solution for stormwater management.
Implementation Method 1
a water retention mat structured to absorb stormwater
Implementation Method 2
The water retention mat is constructed from a porous material such as expanded polytetrafluoroethylene (ePTFE)... The porous structure of the water retention mat allows water to be retained through capillary action
Implementation Method 3
a perforated surface structured to permit drainage of the stormwater from the water retention mat through the perforated surface
Implementation Method 4
with optional integration of a breather fabric and solar-powered fans for enhanced evaporation
Data Source
AI summary
Systems and modular devices for roof or ground-level stormwater management are disclosed. A modular stormwater management device includes a water retention mat structured to absorb stormwater, a rigid frame structured to support the water retention mat, and a perforated surface structured to permit drainage of the stormwater from the water retention mat through the perforated surface. A modular stormwater management system includes a plurality of modular stormwater management devices, each of the modular stormwater management devices including a water retention mat structured to absorb stormwater, a rigid frame structured to support the water retention mat, and a perforated surface structured to permit drainage of the stormwater from the water retention mat through the perforated surface.