Damp-Vent

Fixing walls with rising damp since 2015, inexpensively.
The Damp-Vent plugs will provide damp ventilation, ventilating the trapped moisture within your walls outwards - and also accelerate the drying out process.
It has been designed to prevent external water from entering the wall, along with pesky insects.
The plugs come in a light tan colour, which can be painted to match the wall colour - just to ensure that the ventilation openings remain unobstructed.