Basement walls can collect moisture due to the humidity of being underground. Moisture can also seep through the walls from the outside. To keep your basement walls in good condition, it is a good idea to seal them. Basement walls can be sealed to help lock out moisture, which may lead to mold, mildew, and erosion problems. It is best to seek professional advice or do some research prior to attempting this project.
Knowing how to seal basement walls will serve you well, this information can be found online. Here are some basic guidelines to help you with sealing your basement walls. Be sure the walls have been cleaned and are free of dirt, dust, and other grime that may keep the sealer from penetrating. It is best to use water and a concrete or brick cleaner depending on what your basement walls are made of. Be sure there is proper drainage in the basement floor. If you cannot use water use a concrete cleaner and wipe the walls down to remove any contaminants. Allow the basement walls to dry for a day or two.
Once the basement walls are clean and have dried you can start to apply a basement wall sealer. It is important to have proper ventilation so be sure to open windows and use fans to circulate the air. It is also a good idea to wear the proper personal protection including a respirator. Apply the sealer to the basement walls using a brush, roller, or garden type sprayer. Only apply sealer to basement walls that are bare concrete or brick. Do not apply sealer over painted surfaces because the sealer will not penetrate properly.
Coat the basement walls with the sealer as recommended by the manufacturer. Multiple coats may be necessary. Work in small areas from one end of the wall to the other before moving to the next one. Back brush or wipe away any excess runs or drips that do not penetrate the basement walls after 10 to 15 minutes. Properly sealing your basement walls will ensure the longevity and structural integrity of the home’s foundation.
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