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Exterior Drain Tile Vs. Interior Drain Tile

Last updated 7 months ago

 

For a typical basement, our WaterGuard® system is the ideal choice for waterproofing. This French drain is designed to be installed below the floor slab, resting on top of the foundation footing. This keeps this drainage system out of the

 

Choosing the best home improvement solution can be a complicated process. Especially when it comes to something as important as water in your home.  

When it comes to water seepage below grade, such as in a basement, knowing what to look for to determine the best solution can be daunting. Several options are available and a trained waterproofing professional will be able to determine the best solution for you.

There are two main solutions to waterproofing your basement, interior and exterior. 

Exterior drainage systems are commonly installed at the lowest point along the outside perimeter of your home.  The trench, containing a series of perforated pipes, redirects surface water and groundwater away from the foundation. 

This solution has been a common for basement waterproofing since the early twentieth century, however, over time, can be susceptible to failure.

Since exterior drainage systems are often installed several feet under the earth in a bed of gravel, they will eventually clog with dirt, roots and debris.

Exterior drainage systems are often a prolonged process since they require digging around the foundation of the home. Any landscaping, such as flowerbeds and gardens, walkways, steps and even decks and porches must be removed. In addition, buried gas and water lines, sewer systems and electrical wires could pose hazards during the excavation process.

Interior drainage systems, or an internal perimeter drain system,are a clog-free alternative to traditional exterior drainage systems. Unlike exterior drainage systems, interior systems will not clog since they are installed on top of the footing around the perimeter of your basement, also known as the “clear water zone.”

Instead of digging a trench around the exterior of your home, interior drainage systems are installed along the perimeter of your foundation walls. A specialty-engineered drainpipe is installed and encased with washed gravel at the base of the wall and then filled with cement—leaving the homeowner with a smooth floor and clean basement.

Interior drainage systems capture water from the floor/wall joint, also known as the “cove.” Water is also captured from the walls, which prevents the center of the basement floor from leaking by intercepting the water at the perimeter of the floor before it gets to the center of the basement.

Interior drainage systems often work in conjunction with sump pumps to quickly and effectively remove water that has made its way inside your home.

Determining the correct type of waterproofing system to meet your homes needs is something best left for a waterproofing professional trained in the many options available.