Automated optimized stormwater roof retention systems with integrated leak detection

The automated stormwater roof retention system addresses the challenges of urban stormwater management by integrating leak detection and optimizing retention based on atmospheric conditions, ensuring compliance and safety.

WO2026104960A1PCT designated stage Publication Date: 2026-05-21SUSTAINABLU LLC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SUSTAINABLU LLC
Filing Date
2025-11-07
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing stormwater management systems for urban environments are expensive, complex, and do not meet roofing industry requirements, failing to consider weather conditions and structural capacity, and lack effective leak detection mechanisms.

Method used

An automated stormwater roof retention system with integrated leak detection, utilizing a drain water retention device, float control, and leak detection devices that respond to humidity changes, along with a controller for managing stormwater based on volumetric measurements, atmospheric conditions, and predefined tolerances to optimize retention and release.

Benefits of technology

The system effectively manages stormwater while meeting regulatory and industry standards, ensuring safety by quickly addressing leaks and optimizing retention to minimize damage and compliance costs.

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Abstract

In an exemplary embodiment, a system for releasing stormwater on a rooftop of a building structure includes at least one drain water retention device including a float control device to measure volumetric stormwater retained in the rooftop and a valve to operatively open a drain when the measured volumetric stormwater is exceeded, at least one leak detection device configured to detect a water leak, located under an underlying surface of the rooftop, the at least one leak detection device detects the leak in response to change in relative humidity levels or dew point under the underlying surface of the rooftop, and a controller, executing control instructions, in communication with the at least one drain water retention device for selectively controlling the valve in accordance with the control instructions, the controller includes a storage associated with the controller for storing the control instructions. The control instructions are performed according to the steps of measuring the volumetric stormwater retained in the rooftop, determining a duration of time of stormwater retained in the rooftop, determining a location of the building structure to provide prior estimated precipitation and atmospheric conditions, defining a predefined allowable tolerance, and comparing the measured volumetric stormwater with the predefined allowable tolerance and, if the measured volumetric stormwater exceeds the predefined allowable tolerance, opening the drain to remove the stormwater.
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