Once rising damp has been confirmed, one practical question remains: which damp proofing device should you choose? Between the ATE and ATG technologies and the various models, it is easy to get it wrong. Here is a simple guide to choosing the right damp proofing device for your walls, without oversizing or undersizing.

First, check that it really is rising damp

Even before choosing a damp proofing device, it is worth confirming the cause. These devices are designed for rising damp. Not sure where the damp comes from? Send us a few photos: we confirm the cause before any purchase, openly, so you can invest with peace of mind.

ATE or ATG: two polarity inversion technologies

Humidistop offers two families of devices. The ATE is an electromagnetic polarity inverter, the ATG a geomagnetic polarity inverter. Both aim at the same goal, pushing back rising damp, but they rely on different principles. The choice between them depends on the layout of your home, a point where personalised advice is useful.

The LC15, LC30 and MAX models

Within each technology, several models exist, such as the LC15, LC30 and MAX in the ATE range. They differ in their treatment capacity. In practice, the larger the surface to treat or the more complex the layout, the more you move towards a powerful model. Conversely, a small surface does not need the biggest device.

How to choose the right damp proofing device

To know which damp proofing device to choose, it all depends on the surface to treat, the thickness and nature of the walls, and the layout of the rooms. Rather than guessing, the most reliable route is to start from a diagnosis based on photos: this points you to the right model and hits the target first time.

What makes a good purchase

Beyond the model, go for serious equipment: made in France, tested for electromagnetic compatibility and electrical safety by the Emitech and Nexio laboratories, and covered by a 10 year warranty. Combined with a correct diagnosis, it is this trio, right cause, right model, reliable equipment, that gives the best results.

Frequently asked questions

Which damp proofing device should you choose for a large surface?

A large surface or thick walls point towards a more powerful model. The best option is still to have your case assessed from photos so you hit the target, without paying for power you do not need.

Do you need one device per room?

Not necessarily. A device covers a certain treatment capacity depending on the model. Coverage depends on the layout, which is decided case by case during the advice stage.

Taking action

To choose with confidence, send a few photos of your walls through the contact page, or browse the models in the shop. To compare budgets first, see our article on damp proofing cost. If you are still unsure about effectiveness, our review of electromagnetic damp proofing answers the question.