How to install a basement french drain
A moist basement means fungus and mildew. It’s very important to waterproof your basement in order to avoid health and structural problems.
This method is named tanking and involves covering the exterior of the basement with a chemical substance that will form a waterproof membrane.
Another basement sealing method is using a cavity drainage system. This system also needs to be installed on the building of the basement. The system is made of two parts: a membrane with a honeycomb texture that will be incorporated in the wools and floors and an electric sump pump. The membrane collects the water, the floors leads the collected water to the pump and the pump evacuates the water from the basement. The main problem is that if there is a power outage, this system becomes useless.
French drains are another solution for basement sealing. This is an exterior system and it consists of a trench, pipes and gravel. The main advantages of this system is that it can be installed even after the construction of the basement, and it will work any time, because it doesn’t uses a pump.
This method also involves using chemicals, three layers to be more exact: Permaflex – used for priming, a compound used for cracks and joints, and then another layer of Permaflex.