Introduction
When dealing with rising damp, many homeowners today look for modern solutions that avoid drilling, chemical injections, or invasive construction work. Among these non-invasive approaches, two main technologies stand out: electromagnetic systems (ATE) and geomagnetic systems (ATG).
Although they share the same goal – limiting the upward migration of moisture through capillary action – their operation and applications are different. Understanding these differences is key to knowing when each system may be appropriate.
ATE systems: the reference solution
How they work
ATE devices (Electromagnetic Treatment Devices) operate by emitting low-frequency electromagnetic impulses. These signals interact with the water molecules inside the masonry and are designed to counteract the natural capillary rise of groundwater.
In practice, the electromagnetic field modifies how moisture behaves inside the wall, progressively reducing its upward movement.
Key features
- Require a permanent power supply to operate continuously.
- Quick and non-destructive installation: no drilling, wall cutting, or chemical products involved.
- Simple monitoring: only an occasional visual check of the power connection is needed, with no consumables or replacements required.
Advantages of ATE systems
- Reliability: continuous operation as long as the device is powered.
- Versatility: can be installed in many types of buildings, including residential homes, apartment blocks, or public facilities.
- Durability: designed to work long-term without repeated interventions.
👉 For these reasons, ATE devices are considered the reference solution for tackling rising damp with modern technology.
ATG systems: an alternative when ATE installation is not possible
How they work
ATG devices (Geomagnetic Treatment Devices) make use of natural geomagnetic fields present in the environment. By harnessing these forces, they create a polarity effect that influences water transport inside walls.
Unlike ATE systems, ATG units operate fully autonomously, requiring no external power supply.
Key features
- Fully autonomous: no need for electricity.
- Maintenance-free: once installed, they require no supervision or servicing.
- Discreet: compact units that are unobtrusive in everyday life.
When to use ATG systems
ATG devices are not a competitor to ATE, but a fallback solution. They are used only in cases where installing an ATE is technically impossible, for example:
- no reliable electrical connection available,
- specific constraints in the building,
- inability to safely set up an electrical installation.
Shared advantages of both technologies
Despite their differences, ATE and ATG share several benefits compared with traditional damp-proofing methods:
- Non-invasive installation: no drilling, no wall cutting, no disruptive building work.
- No chemicals: unlike injection methods, they do not require consumable products.
- Compatible with older buildings: suitable for heritage or listed properties without damaging original structures.
- Ease of installation: quick to set up, with minimal disruption to the household.
Choosing between ATE and ATG
The choice between an electromagnetic (ATE) and a geomagnetic (ATG) system is not about the size of the property – contrary to some misconceptions.
- ATE should always be prioritized when possible, as it is the standard and recommended solution.
- ATG should only be considered when the installation of an ATE is technically unfeasible.
In short, the distinction comes down to practical installation conditions, not the type or scale of the building.
Conclusion
Rising damp requires reliable, durable, and non-invasive solutions. Today, two main technologies are available: ATE and ATG.
- ATE (electromagnetic systems): the reference solution, based on low-frequency electromagnetic impulses, requiring a constant power supply.
- ATG (geomagnetic systems): an alternative that uses natural geomagnetic fields, autonomous and maintenance-free, reserved for cases where installing an ATE is not possible.
Both approaches share the same philosophy: providing a modern alternative to heavy or invasive damp treatments, while respecting the integrity of the building – whether it is new, old, or historically protected.
👉 Understanding the difference between ATE and ATG allows homeowners to select the technology best suited to their situation while avoiding the costs and disruptions of traditional methods.
