The purpose of a French drainage system is to carry unwanted free standing water away from your home. French drains are commonly installed 4 to 6 feet from the perimeter of a structure, at low areas, or anywhere standing water is found. French drains use gravity to move water from high areas to lower areas. Most French drains consist of simple materials that can be purchased at your local hardware store. It does, however, take considerable skill and experience to properly design and install the system so that it effectively serves its purpose.
In Middle Tennessee, our land is typically composed of a shallow layer of topsoil (usually 6” to 12”) and is followed by a dense layer of orange clay and/or rock. The density of the clay prohibits water absorption into the ground. This is why the water pools and stands on level surfaces. On sloped surfaces, the water saturates through the topsoil and down to the clay “shelf”, where it flows downhill with the prevailing slope of the property. When your home is built into the prevailing slope, water will flow into or along your most uphill walls. This is the usually the beginning of your water problems.
Advantages of a French Drain
• Improve an areas usefulness
• Increase your home’s value
• Eliminate pest breeding areas
• Decrease mold potential
• Reduce foundation decay
The Barrier French Drain system was designed to address the issues most common to Middle Tennessee. Barrier has refined the technique of French drain construction to a science.When you hire Barrier to design and install your French drain, you can rest assured that the materials are installed to give you the longest possible life out of a French drain system.