The process of exterior drain tiling involves excavation of the soil immediately surrounding the foundation wall. The soil is removed down to the footing (usually 6-8 ft. down). a corrugated, slotted (to allow water in) polyethylene pipe in the trench. The drain pipe is laid into the trench with a slight grade of the soil to allow passive draining of the water to discharge at a downhill area that is lower than the drain pipe. Alternatively, a sump well can be installed to pump the water to a suitable location. With the foundation wall exposed, a polyethylene sheet is anchored to the foundation wall to prevent water intrusion and allow water to directed to the drain pipe below.
Since 2007 we have been keeping basements dry in Northern Iowa and Southern Minnesota. With our interior and exterior tiling systems you can set your mind at ease, knowing that your basement will remain dry no matter what the weather. Contact us today for a free estimate.