French drain (exterior drain)
Understanding French drains
The French drain is a drain pipe that runs around a building to evacuate excess water and prevent accumulations. Water collected by the drain is directed to a catchment area. A quality French drain, that is well installed and in good condition, will protect your home from humidity and infiltrations.
A French drain lasts approximately 30 years, but its lifespan may be shortened in the following cases: the drain is poorly positioned, poorly installed, clogged or even inexistent. Your basement may become humid or emit an odour, or mould may start to develop. During periods of heavy rainfall, water can infiltrate and accumulate in the slab or joints of the foundation. You could also be affected by iron ochre deposits that can completely clog your drain and prevent it from functioning.
Even if your home is a recent construction of good quality, damage such as cracks or corrosion of the concrete framework can become apparent and seriously affect your home. Also, the proliferation of bacteria and fungi can be very bad for your health.
