Skip to main content
Intelligentes Regenwassermanagement

SmartFlow macht aus jedem Flachdach eine aktive Regenwasser-Anlage

Nachrüstung auf jedem bestehenden Flachdach an einem Tag. Echtzeit-Sensorsteuerung, automatische Compliance-Berichte und direkte Anbindung an das Regenwassernetz Ihrer Stadt — ohne bauliche Veränderungen.

Solar Impulse Efficient SolutionForschungsbasis am Technionaktive Installationen in Israel
  • Solar Impulse Efficient Solution label

    Solar Impulse

    Efficient Solution Label

  • Technion

    Peer-reviewed research foundation

  • Israel

    Active field installations

  • Dozens

    Rain events managed

Working with

Technion — Israel Institute of Technology
Sh. Baruch
Muslala
Shalom Natan
Peleg

How it works

Monitor. Adapt. Act.

Three integrated functions — running continuously and automatically.

Monitor

The on-device sensor tracks water depth on the rooftop at short intervals. Sensor data streams to the cloud platform in near real-time.

Adapt

The control algorithm ingests current sensor readings alongside weather forecast data to determine the optimal roof valve state for the next period.

Act

The roof valve opens or closes based on the computed release profile. Every action is logged with timestamp, sensor state, and weather context.

System components

Three integrated layers

Hardware

Smart Roof Device

A compact electromechanical unit installed on the rooftop drainage outlet. It monitors water levels, actuates the drainage roof valve, and communicates with the cloud platform over a secure wireless connection.

  • IP67-rated enclosure
  • Ultrasonic water-level sensor
  • 4G/LTE cellular connectivity
  • Manual override switch
Software

Cloud Monitoring Platform

A web-based interface for monitoring, configuration, and reporting across all managed buildings. Real-time dashboards, event logs, and alert management are accessible from any device.

  • Multi-site portfolio dashboard
  • Real-time sensor telemetry
  • Rain event timeline and logs
  • Configurable alert thresholds
  • CSV / PDF export for reporting
Control

Adaptive Control Logic

The control algorithm evaluates sensor data, local weather forecasts, and configured release profiles to determine roof valve state. It operates within defined safety envelopes and supports rule-based overrides.

  • Forecast-aware scheduling
  • Configurable release profiles
  • Normally open by default
  • Maximum retention enforcement
  • Full event audit trail

Full platform overview →

Performance

Steuerung auf Gebäudeebene mit messbarer städtischer Wirkung

Jedes bewirtschaftete Dach trägt zur Reduktion des Spitzenabflusses auf Netzebene bei. Die folgenden Daten stammen aus aktiven Installationen.

30–50%

Reduction in peak stormwater discharge

Active installations

Configurable

Discharge rate configured per site hydrology profile

Building → City

Scalable from single rooftop to city-wide network

Why SmartFlow

Fähigkeiten, mit denen ein passives System nicht mithalten kann

Feature 1 — Real-Time Control

Responsive, not just restrictive.

SmartFlow adapts in real time during every storm — adjusting to forecast changes, sewer load signals, and actual roof fill rate. A passive throttle drains at a fixed rate regardless of conditions. SmartFlow does not.

Feature 2 — Compliance Reports

Compliance reports generated automatically. Every storm.

Per-storm reports showing retention volume, release timing, and outflow rate — generated automatically and ready to submit to municipal authorities. No manual data collection, no post-processing.

Feature 3 — City Grid Integration

Your roof, connected to the city.

SmartFlow receives real-time hold signals from municipal stormwater networks. When a sewer sector is overloaded, all connected SmartFlow units in that zone hold — coordinating neighbourhood-scale retention from a single city signal.

Feature 4 — Blue-Green Ready

Blue roof. Green roof. One controller.

Connects to any existing irrigation controller to use retained rainwater for rooftop vegetation — without a full green roof installation. Competitors require the full system first. SmartFlow works on any existing flat roof today.

Field evidence

Forschungsbasiert. Im Feld erprobt.

SmartFlow stützt sich auf eine Forschungsbasis aus Israel und internationalen Forschungsinstituten und wird durch aktive Installationen in ganz Israel validiert.

Peer-reviewed research

Control methodology informed by peer-reviewed research on rooftop retention control from Israel and international research institutes.

Active deployments

SmartFlow units are operating on buildings across Israel, collecting continuous performance data across rain events and seasonal cycles.

Dozens of rain events

Dozens of rain events managed and logged across active sites, providing a growing dataset of real-world retention and release performance.

Solar Impulse recognised

Awarded the Solar Impulse Efficient Solution label — recognising solutions that combine environmental protection with economic profitability.

Designed with practitioners

System specifications and deployment workflows developed in consultation with hydrology consultants and building contractors.

Vergleich

Passive Drosselung vs. SmartFlow

Statische Durchflussbegrenzer und unkontrollierte Speicherung können den Spitzenabfluss senken, aber sie sehen keinen Sturm kommen, können nicht nachweisen, was sie getan haben, und stimmen sich nicht mit der Stadt ab. SmartFlow macht alle drei — am bestehenden Dachablauf.

Passiv / statisch
SmartFlow
Installation am bestehenden Dachablauf
Ja (feste Öffnung)
Ja
Bauliche Arbeiten
Manchmal
Keine
Bepflanzung & Wartung
Abhängig
Nicht erforderlich
Reduktion des Spitzenabflusses
Fest, begrenzt
30–50%, gesteuert
Echtzeit-, prognosebasierte Steuerung
Nein
Ja
Automatische Compliance-Berichte pro Sturm
Nein
Ja
Integration mit Haltesignal der Stadt
Nein
Ja
Selbstmontage durch den Auftragnehmer
Unterschiedlich
Ja

Die Reduktion des Spitzenabflusses um 30–50% basiert auf aktiven SmartFlow-Installationen. Der Vergleich bezieht sich auf allgemeine passive Ansätze, nicht auf ein bestimmtes Produkt.

Solutions

Built for the stakeholders who manage water

SmartFlow addresses the needs of building operators, developers, consultants, and municipalities — each with different priorities and measures of success.

Buildings & Property Managers

Protect your property. Reduce flood exposure.

SmartFlow provides practical protection against rooftop flooding and drainage overload — with a monitoring dashboard that requires no specialist knowledge to operate.

  • Reduces risk of drainage failure during heavy rain
  • Real-time alerts for high water levels on-roof
  • Event reports suitable for insurance documentation

Developers & Architects

Meet stormwater requirements at the design stage.

Incorporating SmartFlow into a new development or major retrofit delivers a compliant, documented approach to stormwater management — supporting regulatory approval and green building goals.

  • Quantified retention data for planning submissions
  • Supports local green building standards and regulatory stormwater requirements
  • Compact footprint integrates with standard drainage layouts

Hydrology Consultants

A calibrated tool for quantified performance.

SmartFlow gives hydrology consultants a deployable system that produces continuous performance data — enabling model validation, reporting, and adaptive management of individual sites.

  • Continuous time-series data from deployed units
  • Configurable release profiles matched to model parameters
  • Event-by-event performance logs for reporting

Municipalities & Urban Stakeholders

Building-level control with measurable urban impact.

For municipalities facing drainage capacity constraints, SmartFlow offers a distributed control approach — deploying stormwater retention at scale across the building stock.

  • Aggregate retention across a portfolio of buildings
  • Coordinated release scheduling to smooth downstream load
  • Publicly reportable performance data

Field data & resources

Live deployments. Published documentation.

Active installations are running and collecting data. Technical resources, case studies, and hydrology guides are available in our Knowledge Center.

Case StudyLive deployment

Akko Neighborhood, Northern Israel

14 buildings · Active deployment · Installed by ש. ברוך

First large-scale multi-building residential deployment in Israel. SmartFlow units across 14 buildings in the Akko neighbourhood — coordinated retention without underground tanks or pump systems. Hydrological specification by Greiner.

Read the full case study →
Knowledge CenterAvailable now

Technical resources and hydrology background

Stormwater management guides, blue roof technology explainers, engineering references, and a glossary of key terms — all available in our Knowledge Center.

Stormwater GuideBlue Roof TechnologyGlossaryEngineering Principles
Explore the Knowledge Center →

Looking for something specific? Contact our engineering team →

Technical resources

Hydrological specification and field documentation available for download.

Zusammenfassung des ersten Regenereignisses — Sanhedrin 13, Tel Aviv

Zusammenfassung und Dokumentation der Überwachung des ersten Regenereignisses in Sanhedrin 13, Tel Aviv.

Hydrologische Spezifikation

Hydrologische Spezifikation und Felddokumentation zum Download verfügbar.

Explore the SmartFlow platform, browse solutions, view pricing, or learn about smart stormwater management for urban buildings.

Read our stormwater management guide, discover blue roof technology, or browse the stormwater glossary.

Sind Sie Hydrologe, Ingenieur oder Aufsichtsbehörde?

Arbeiten Sie mit uns zusammen, um SmartFlow für Ihre Region zu evaluieren, lokale Compliance-Anforderungen zu validieren und Pilotinstallationen zu leiten.

Bereit, Regenwasser auf Ihren bestehenden Dächern zu steuern?

Erzählen Sie uns von Ihrem Gebäude oder Portfolio — wir zeigen, wie SmartFlow Speicherung, Ableitung und Compliance dokumentiert.

Request a Demo