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Rain or underground water, condensation or infiltration... When moisture penetrates the building, materials and coatings are degraded, and the house becomes unhealthy. It is important to understand the phenomena involved to better solve them.

to isolate his house

Nothing stops the water

The water never goes back. It infiltrates, insinuates and progresses, taking all possible paths.
Its origin is sometimes difficult to identify.
But it is important to recognize it before applying any treatment.

Condensation

Condensation occurs when the house is poorly ventilated.
The air is quickly saturated with water vapor that condenses on cold surfaces (poorly insulated walls and floors, glazing, thermal bridges, etc.).
If the damage is sometimes impressive - peeled and moldy wallpapers, paints blistered... - the establishment of a mechanical ventilation system normally helps to eliminate the problem.

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Hair lift

The capillary rise occurs when the foundations, in contact with the water (rise of water table, bad drainage...), are not or poorly protected.
Moisture migrates into the masonry as on a blotting paper until it reaches the walls of the ground floor.
In the new, it must be ensured that all seals are implemented (capillary cuts - or waterproof arches -, waterproofing foundations and drainage in wet ground.
In the former, the interventions being more difficult, the treatments consist in creating a chemical barrier sealed, to carry out a permanent evacuation of the humidity of the walls (atmospheric siphons).

Infiltration at the basement level

The lateral infiltrations concern the parts of buried walls which absorb the water contained in the ground until causing, generally in the basement, stains of humidity or runoff, even risings on the ground floor.
Drainage is an effective response, but sometimes difficult to practice in a landscaped garden.
As well as the waterproofing of the buried walls, which implies their exposure.
While it is sometimes possible to divert water by electro-osmosis, the most common solution is to waterproof the walls from the inside of the cellar and to practice a forced ventilation of the premises to evacuate the water vapor in excess (The sealing systems being, for the most part, microporous).

Runoff

Runoff water creeps through the roof, joinery or facades when they have leaks (cracks, joints defective, gutters clogged, tiles moved, etc.).
Absorbed by porous materials, water infiltrates the masonry.
Monitoring the condition of the roof, gutters, facades and water pipes, and repairing degraded elements avoids problems.

Provide effective ventilation

Waterproof windows, condemned chimney, insulating door? Beware of condensation! A healthy home is a house that breathes. Install a controlled mechanical ventilation.

Monitor the roof

Cracked tile, cracked flashing, pierced gutter... These minor damages can be a source of infiltration.
Monitor repairs to keep your head dry.

Sanitize the cellar

The cellar is in the front row when the moisture is on its nose. Before intervening, it is essential to know where the water comes from.
To know where it comes from, you have to ask the right questions.

Block capillary rise

If the ground is wet and the foundations are not waterproof, the capillary rise occurs.
A chemical barrier (or other) well done can block them.


Video Instruction: HUMIDITY AND HAIR: HOW TO DEAL! | Brittney Gray