An Overview Of Basement Waterproofing Strategies

Basement leaks can lead to a wide range of structural problems for a house, including highly expensive forms of foundation damage. Thus it is of the utmost importance that water be kept where it belongs—on the outside of your home. If you would like to learn more about basement waterproofing strategies, read on. This article will provide an overview of some of the most common techniques being used today.

Positive Side vs. Negative Side

The most important distinction when it comes to basement waterproofing is the difference between positive and negative side. Positive side waterproofing strategies are those that focus on the side from which the water is coming. In other words, these barriers act to stop the flow of water before it is able to enter the structure.

Negative side waterproofing, on the other hand, involves the application of water tight barriers on the interior side of the basement walls. In general, positive side waterproofing is considered a more effective long term strategy. Yet for pre-existing structures the installation can be much more invasive and expensive. Thus negative side waterproofing is often more attractive when considering the trade-off between effectiveness and installation cost.

Positive Side Solutions

There are two principal types of positive side waterproofing. The first, which does not require excavation, involves the injection of sodium bentonite into the soil around the foundation walls. As this fine powder absorbs water, it wells to many times its original size, thus forming a naturally water-impermeable barrier. It is also effective at finding its way into cracks along the foundation wall, effectively plugging them against the intrusion of water.

The second method of positive side waterproofing involves excavating the soil around the foundation. The exterior walls are then covered with a special waterproofing fabric, which is cemented into place using an asphalt-derived pitch. The result is a thick, highly waterproof sheathing. Alternately, a sheet of water-tight polyethlyene can be affixed to the outside of the foundation, thus achieving a similar effect.

Negative Side Solutions

Negative side waterproofing involves the application of various coatings and/or sealers to the inside of your basement walls. Unpainted concrete and/or masonry walls can be effectively sealed against water using a concrete coating. This will form a thick outer layer on the wall, effectively plugging any holes or gaps that had been allowing the entrance of water.

Painted walls can be waterproofed through the addition of a new layer of waterproofing paint. These acrylic-based paints differ from regular wall paint in that they adhere in a much thicker layer. This provides a barrier with enough strength to resist the pressure of water moving hydrostatically through the foundation wall.

For more information, contact companies like Central Penn Waterproofing.

About Me

Commercial Build-to-Suit Struggles: What You Should Know

One of the biggest challenges of leasing a retail space is the build-to-suit lease clause. If you're signing a lease on a commercial property, you need to understand what to expect from the planning and construction phases. The first time I signed a lease like this, I had no idea that there were some modifications that couldn't be made, leaving me with a building I couldn't do what I wanted with. I created this site to help others just like you understand what the process entails so that they can be fully prepared and avoid the mistakes that I made.


Latest Posts

5 April 2021
It's a good idea to have an HVAC technician check your AC before the weather gets so warm you need to start using it every day. The outdoor part of yo

16 February 2021
A manmade pond that is designed to mimic a natural feature will serve as an ecosystem where fish and aquatic plants live. The construction of a pond r

14 December 2020
Stucco can last for a very long time since it's designed to have a lot of durability and isn't dependent on frequent maintenance. Still, stucco can so