A brown roof or sometimes called a biodiverse roof are designed to look natural and are usually not walk-able. Their popularity grows every year especially in busy urban areas.

If SENSOR DDS® leak detection technology is implemented into the design of the brown roof, we can identify leaks in the early stages and repair them before the stains on the ceiling are visible on the interior.

Solution for flat roofs – SENSOR DDS® technology

The most used and effective way of testing the liner integrity on any flat roof is to survey using SENSOR DDS® technology. As the technology is based on the distribution of geoelectrical field Sensor has developed the Smart Geotextile which is installed below the PVC, TPO, Pitch or other non-conductive roofing membranes. It is a direct replacement of standard geotextile so no additional installation is needed.

Below you can see the general design of flat roof with exposed liner. In case of brown roof, gravel layer is installed on top after whole roof is tested for leaks using Arc Tester – SENSOR DDS® MIT.

Brown Roof 1

Sensor Smart Geotextile is installed as standard geotextile with a minimum overlap of 100mm.

After installation of the roofing membrane integrity can be tested using a SENSOR DDS® MIT portable Arc Testing device, which eliminates every pinhole .

As a next step a drainage gravel layer is careful installed on top of the tested roof liner. Final test of roof membrane integrity is completed by installing our SENSOR DDS® RFM testing kit which during setup identifies small holes caused by stone placement or other following trades.

Brown roof 2

The SENSOR DDS® RFM system provides permanent 24/7 monitoring of the roof waterproofing membrane. This sophisticated system is a signature Sensor product and can provide whole roof or using our patented sensor and system it can also provide sectorized alerts where the area is divided up into discrete sectors. Real time leak monitoring via a local control panel inside the building, or via remote access can really protect sensitive document storage sites, banks, air traffic control and data centers.

In event of a leak, the system automatically triggers a leakage alarm and informs the client via SCADA / SMS text message / email.

Green roof 3

Examples of detected damage on brown roofs using SENSOR DDS® technology

SENSOR DDS® technology allows tests for leaks on uncovered or covered brown roofs.

Sensor leak detection geotextile was installed on top of insulation on this roof to test for leaks in PVC liner.

We can test any type of non-conductive liner used on flat roof (PVC, TPE, Bituminous etc...).

Testing roof liner for leaks using our SENSOR DDS® MIT Arc Tester is very fast and easy.

Usually multiple leaks are found on flat roofs using our SENSOR DDS® technology.

It is essential to test ALL waterproofing membrane on the roof with our Arc Tester.

This roof has a 1.5mm TPO membrane it was tested for leaks and then repaired, the patch repairs were then retested.

Whether it's an old or new flat roof, SENSOR DDS® MIT Arc Tester can find every pinholes in the liner.