Concrete Block Waterproofing Products - What Are Your Options?

When it comes to keeping your concrete block basement dry, finding a good concrete block waterproofing product is essential. It can literally mean the difference between having a wet basement, or even a moldy one, and having a nice dry area to build a family room in or have plenty of storage room in. With that said, here are some of your options to choose from with concrete block waterproofing products.

Liquid Membranes

This liquid coating is applied using a spray, roller, or a trowel. When it dries or cures, it will have a rubbery coating on the surface of the concrete block which will keep moisture out.

Sheet Membranes

These products are self-adhering rubberized membranes. When applied, a water polyurethane film is coated with a rubberized asphalt to make sheets. These are a step ahead of the liquid.

Cement Waterproofing

This kind of product assures a very durable and solid coating. It adheres well to the wall. The cement product should be combined with an acrylic additive and then mixed together. Afterwards, it may be applied to the wall using a long handled brush.

Built-up Systems

This concrete block waterproofing product is composed of asphalt and felt. Using a concrete primer is the first step in doing the system. Heat the tar component in a large kettle and then apply it to the wall. Immediately after applying the tar, apply a layer of perforated felt and extend all the way out to the footing. Three staggered layers of felt are needed to build and then cover the entire wall with the final coat of the tar. Although there is considerable effort involved, the product works pretty well.

Surface Preparation

Waterproofing needs clean and dry walls. The footings should be thoroughly swept and scraped off. Any loose material on the footing walls will need to be removed. The reason behind this preparation is that everything should be clean and dry so that the waterproofing materials will stick and be durable.