MURSAIN solution
Condensation on windows, mould in corners, heavy air in a basement, sensitive storage to protect: these are air problems, not always wall problems. MURSAIN installs the right device after diagnosis and combines it with HYGRO when the wall is also involved.
Before installing a device, MURSAIN distinguishes humidity contained in the air from water present in the wall. Treating the wrong cause means spending money without lasting results.
Humidity in the air -> air treatment
Humidity in the wall -> HYGRO
Two device families capture humidity from the air, but their operating range differs. MURSAIN selects equipment suited to the temperature and use of the space.
By condensation
It cools the air until water vapour liquefies, then collects it. Effective from around 15 °C, it becomes more efficient as temperatures rise.
Ideal for living spaces and temperate rooms.
By adsorption
A hygroscopic material fixes water vapour on its surface. It works even at low temperature, but loses efficiency above 35-40 °C.
Suitable for cold rooms, cellars and underground basements.
Describe the issues, the room concerned and how it is used. We quickly qualify whether the issue is the air, the wall, or both.
Volume, temperature, ventilation and humidity level guide the choice between a dehumidifier, a dryer, or a complementary wall treatment with HYGRO.
MURSAIN installs the equipment suited to the conditions of the space in order to control air humidity over time.
In conjunction with HYGRO
The same building can combine rising moisture in the wall and overly humid indoor air. In that case, HYGRO neutralises the rise at the source, while air treatment controls the humidity of the room, especially in basements and poorly ventilated spaces.
That is the whole point of the diagnosis: determining whether one solution is enough, or whether both must work together for a lasting result. MURSAIN only recommends a device when it is genuinely relevant.
Air treatment acts on the moisture contained in the air of a room: it captures and removes it, improving comfort and limiting condensation. HYGRO acts on the physical mechanism that makes water rise from the ground into the wall. The two do not treat the same problem: one treats the air, the other the wall. That is why they are often complementary.
Both extract moisture from the air, but with different technologies. The dehumidifier works by condensation and becomes effective from around 15 °C. The dryer works by adsorption and remains effective at low temperatures, but loses efficiency above 35 to 40 °C. The choice mainly depends on the temperature of the room to be treated.
Adsorption is a physical phenomenon in which molecules attach themselves to the surface of a solid without penetrating it, unlike absorption, where the substance integrates into the material. This is the principle used by the dryer.
Yes, and this is common. A building can combine rising damp in the wall and overly humid ambient air. HYGRO neutralises the rise at the source; air treatment controls residual humidity in the room. MURSAIN determines during diagnosis whether one solution is enough or whether both should work together.
Some signs point toward the air: mould high on walls, in corners, behind furniture or in cupboards, often linked to poor ventilation. Others point toward the wall: saltpetre, a damp band at the base of the wall, crumbling render. A diagnosis quickly qualifies the situation before proposing a device or treatment.
Next step
Describe the observed issues and the use of the room. We assess your situation and guide you to the right solution, with no obligation.
