Taken wallpaper, traces of mold … Excessive humidity is the worst enemy of your interior. Discover all our advice to finally come to the end of humidity problems.
Not only can humidity problems damage your interior and the structure of your accommodation but also cause health problems. It is important to make a diagnosis and treat the problem quickly.
What are the symptoms of too high humidity?
Several signs are revealing:
- there Presence of saltpeter (whitish foam) on the walls,
- of the wallpaper detachmentsplaster and all the coatings, in general
- a shackle and mold,
- even by the presence of mold
- a excessive fog On the windows.
For example, if it is normal to have fog in a bathroom when you get out of a shower, you have to worry if you find it on the windows of a bedroom, in the morning when you wake up. Finally, our state of health can also be an indicator. Humidity does not make sick but it is a trigger for diseases of the respiratory tract, joint problems and allergies. For an interior to be healthy, the ambient air must contain Between 45 and 50 % humidity. When mold appears, this rate is greater than 75 %.
Where does humidity come from in the house?
There are two types of humidity. The first, known as structural, comes from walls, floor or ceiling. It generally results from infiltration or capillary lifts (the humidity contained in the floor gradually wins the walls of the ground floor and the first stages). She is frequent in old buildingsbut in new housing, when sealing is poorly made, or in the event of a water leak. The second is relative humidity, which is actually a condensation problem: ambient air is not sufficiently renewed and humidity remains locked up in your accommodation.
To identify them, you should know that the presence of saltpeter translates a infiltration problem or hair lifts. On the other hand, if we observe mold, in particular in the angles of the rooms, or on fresh places (tiles, hunting tank), it is that it is a condensation problem. Finally, if we notice orange marks, there is a good chance that it is an infiltration or a leak.
Above all, do not try to hide the traces of humidity without treating it, because it will reappear. Useless, also, to isolate your interior even more, by doubling for example your wall with a plastering. The humidity will only move. In the event of a condensation problem, it is necessary to ensure that the air is constantly renewed. It is necessary to distaln the doors so that it circulates in all the rooms. We can also Create ventilation : Place or have grids on the windows to let air pass. Then, two solutions are possible: either we create an overpressure thanks to an installation which will take air outside and pulse it inside, or we create on the contrary a depression, in installing a VMC (Controlled mechanical ventilation) which will suck the air, to expel it outside.
If the humidity is structural, it will be necessary Call on professionals To review the waterproofing of materials: walls, roofs, terraces … If it is a problem of infiltration or capillary rise, they will be able to carry out injections or even waterproofing work. One thing is certain: whatever the problem, this work will have visible results very quickly.
(Thanks to Martial Guillouet, expert in humidity problems, for his advice)
