Understand how a polarity inverter works, when it can be useful and which limits must be known before buying.

Learn how to choose an anti-damp device for walls according to area, power socket availability and building configuration.

A clear comparison between ATE and ATG devices to choose the Humidistop solution best suited to your building.

Discover which factors affect the drying time of a damp wall and why the result is progressive.

Understand why saltpetre appears on walls, how to clean it and how to address the cause of moisture.

Discover which solutions can treat damp walls without heavy, destructive or unnecessary renovation work.

Find out why some damp treatments fail and how to avoid wrong causes, poor installation or unsuitable solutions.

Learn why an old house can be damp and which solutions respect stone walls, porous materials and ventilation.