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Introducing Leak Sentry™

Leak Sentry by Sentinel Roof Technologies is an innovative solution designed to protect properties from water damage due to roof leaks. It's an always-on leak detection system that monitors changes in moisture content within the roof assembly. Utilizing electric signals and a sensor grid, Leak Sentry can accurately pinpoint the location of leaks. This system is particularly beneficial for data centers, museums, laboratories, and other high-value properties that require continuous operation and protection from water damage.

Leak Sentry Desktop Dashboard
Real Time Monitoring

Real time monitoring ensures that you know about a leak BEFORE it can cause major damage to your building, property, and business.

Full Service

Full service monitoring gives you the peace of mind that we are monitoring your building so that you can focus on running your business!

Patented Sensor Grid

Our patented sensor grid technology provides pinpoint accuracy, reducing the cost and time of repair.

Project Use Cases


Do you have valuable assets that would be costly to replace in the event of water damage?  Buildings with a lot of assets to protect like museums, libraries, research labs, and luxury residences choose Leak Sentry.

Art Museum

Continuity of Service

Would you lose money for every hour of interrupted service to your customers?  Buildings providing key infrastructure like data centers, hospitals, and government buildings look to Leak Sentry to help them protect their services.

Woman at Data Center

Rooftop Amenities

Want to install a rooftop bar but are worried about leaks?  Roofs with extensive overburden that would be costly to dig up in order to find a leak like plaza’s and amenity spaces rest easy using Leak Sentry.

Rooftop Deck

Types of Installations

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Conventional Roof Assembly

Conventional Roof Assemblies are those where the insulation is below the roofing membrane (waterproofing).  In these assemblies, you have two layers of sensors and a conductive medium.  The bottom layer of sensors sit on the structural deck and vapor barrier and check for the presence of water pooling in that layer.  The top layer of sensors are directly on the membrane and are “listening” to see if they can pick up the electronic signal from the conductive media underneath the membrane.  If they can pick up the signal, it means there is a breach.


New Roof

New construction is the best and easiest time to include Leak Sentry in your project!  We will coordinate with your GC and Roofer to install our system including the fabrication and installation of the Leak Sentry monitoring panel and we will calibrate the system to your specific roof assembly!

Rooftop restaurant

Protected (Inverted) Membrane

A low voltage charge is introduced into the roof assembly and is carried along a conductive element installed directly above the sensors.  If there is no breach, the charge will be distributed relatively evenly throughout the roof area.  If there is a breach, power will be drawn to that location like a funnel, and the surrounding sensors will pick up the change in voltage.

Construction workers

Replacement Roof

Replacing a roof that is either old or leaky?  Leak Sentry can work with your roofer to retrofit our monitoring system as part of the roof replacement.  Our experienced installers will work in tandem with your roofer to make sure that your project schedule is on track and the roof doesn’t remain exposed for any longer than it needs to be.

City Sky

Leak Sentry in Action

Convenient dashboard to track your roof statuses across all of your buildings at a glance.

Leak Sentry Desktop Dashboard

All alerts include maps of affected sensors and the severity of the alert.

Leak Sentry Roof Plan

Powerful Integrations

Leak Sentry works with Building Management Systems, Security Alarm Panels, and Weather Companies to provide you with a seamless experience with all of your partners.

Building Management Systems

Leak Sentry can push alerts into most Building Management Systems, especially those compatible with the BACnet protocol.

Security Panels

Leak Sentry can provide dry contract relays to trigger an alarm on a security panel inside the building.

Weather Integrations

All Leak Sentry integrations automatically include an integration with the OpenWeather API to use weather data in conjunction with alert data to provide robust information about each alert.


Leak Sentry Hardware + Installation

Initial pricing is based on the square footage, the assembly, number of roof areas, and other architectural factors.

Monitoring is covered for the first year. Additional years can be added to the initial proposal at a discounted rate upon request. 


Monitoring (includes Maintenance & Limited Warranty)

Following the first year of service, a subscription is needed to continue monitoring which includes an annual maintenance visit for the term of the contract. Monitoring subscription includes:

  • Full service monitoring

  • On-demand self service monitoring

  • Quarterly reports

  • Maintenance visits

  • Limited equipment warranty.

Buildings from Below
Mobile Phone with Leak Sentry App


Sentinel offers a free, no obligation leak risk assessment. Find out your property's vulnerabilities and how Leak Sentry can protect you and your tenants.

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