Negative Side Basement Waterproofing Explained

Negative Side Basement WaterproofingNegative side basement waterproofing may sound like a difficult concept to understand, but don’t let the terminology scare you. Basically, there are two fundamentally different ways to waterproof a basement. One way is waterproof it from the outside, preferably while the house is still under construction to provide unobstructed access to the outward-facing side of the foundation walls. This method entails the application of a polymer-based coating that can sprayed or rolled on, depending on the product. A quick-curing polymer coating forms a barrier that prevents water from coming into contact with the foundation walls altogether. For this reason, waterproofing a basement from the outside can be highly effective at preventing structural damage from occurring.

The second main method is called negative side basement waterproofing. Here, waterproofing is carried out from the inside, typically after a home begins experiencing a water intrusion problem. A very popular and effective method of negative side waterproofing is the installation of an interior drainage system. The drain collects water and typically sends it to an internal sump pump that, in turn, pumps the water through a pipe and away from the house where it can’t do any damage to the foundation. The effectiveness of negative waterproofing can be improved with the aid of specialized membranes attached to the foundation walls that quickly guide water into the interior drain.

For more information on this topic, contact BDry, developer of the BDry Basement Waterproofing System and a company widely respected for the contributions it has made to the home improvement specialty of basement waterproofing over the course of half a century.

*For specific information regarding financing options and warranties, check with your local BDry dealer.