Retrofitting sensors in existing roofs gives you continuous insight into moisture and temperature levels, reduces the risk of damage, and enables targeted, proactive maintenance – without compromising the vapor barrier.
Roofs Are a Risk – Regardless of Type
Flat roofs are a well-known high-risk construction in buildings. This applies not only to the classic grey roofs with asphalt or membrane – but even more so to green roofs with sedum and soil, blue roofs designed to manage stormwater, and roofs with technical installations such as solar panels, ventilation systems, or rooftop terraces. The more functions and trades involved in managing the roof, the greater the complexity – and the risk.
Water intrusion, condensation, leaks around Roof-penetrating installations, and long-term moisture buildup can lead to significant damage. These damages are not necessarily the roofer’s fault. Throughout the building’s lifetime, the roof is exposed to interventions from sheet metal workers, HVAC technicians, electricians, carpenters, landscape architects, and others who need to run conduits, install equipment, or make surface modifications.
Why You Should Retrofit Sensors in Your Roof
By installing moisture sensors, you gain continuous insight into parts of the structure that are otherwise inaccessible. The sensors provide a unique overview of the condition of the roof structure – an area that is normally out of reach without destructive inspections. This means you can:
- Monitor moisture and temperature trends within the construction
- Gain insights based on data – not just occasional site visits
- Take targeted action where problems actually occur
- Monitor the roof and perform proactive maintenance
- Reduce risks and costs – the sensors cost only a fraction of the damage they help prevent
How Does It Work in Practice?
Sensor Innovation has developed a method that allows sensors to be retrofitted without damaging the vapor barrier. Using a specialized tool, a core is carefully removed from the insulation to access the vapor barrier. A sensor is then gently placed on the surface, and approximately 4 cm of insulation is permanently removed around the sensor to avoid pressure. The remaining insulation is put back in place, and a roofer applies a new membrane patch to fully reseal the area.
The sensors are typically installed in a grid pattern, with each sensor covering about 25 square meters. Additional sensors can be placed in critical areas such as corners, penetrations, drains, and technical installations.
Who Can Do the Installation?
Sensor Innovation can handle the installation in collaboration with certified roofing contractors. For property owners or managers who prefer to carry out the installation themselves, we offer training and hands-on support during the first installation.
We also provide guidance on sensor placement, quantity, and system setup – ensuring you get a robust, value-adding solution, whether retrofitting on an existing building or combining it with other roofing work.
Are You Responsible for a Roof?
Retrofitting sensors gives you control, documentation, and peace of mind – enabling you to prevent issues rather than just repair damage.
Get in touch with us at Sensor Innovation for a non-binding assessment of your building.