What is the best waterproofing agent for outdoor walls?
![Antonio Neves](https://cdn.prod.website-files.com/5b5694df76451f74367f58e3/65a9d126f67ece7076472b66_Neves---Thumbnail-(1).webp)
If you came to this article, you probably want to know about waterproofing in external walls, was I right? This compilation of questions and answers is for those who have problems with infiltration on external walls and want to solve them or for those who are in the execution phase of the work and want to know the correct procedures to prevent the onset of the harmful effects of humidity.
If you don't fit into any of these cases, but you want to know more about this very important topic to ensure quality construction, you are also very welcome. Therefore, from our years of experience in the field of civil construction, we know what are the main doubts and questions about the waterproofing of external walls. Then, we selected and answered the most common ones on this topic to help you in this mission to combat humidity. Read them all because, of course, one of them may be your question too. Are you ready? Let's go!
This is a basic question and you should probably already know the answer to. But it's still very important, that's why it's here. Waterproofing walls is essential, first of all, to prevent the occurrence of infiltrations and their consequences, the pathological manifestations ranging from the appearance of bubbles, molds and efflorescence. These problems affect not only the aesthetics of the walls, but they can compromise the entire structure of the building and generate disorders that require work and money to solve.
In addition, waterproofing external walls, which are more susceptible and exposed to weather, increases the conservation and durability of the material, reducing periodic maintenance.
Is your outdoor wall seeping in? First of all, you need to identify what solution your wall needs, that is, to know how to solve the seep that is taking place on your wall, you need to identify the problem and the type of coating. I say this because every seeping wall requires a solution. For example, if it's a painted wall, you should use BlokSeal, a water repellent that creates a layer that prevents the passage of water and the accumulation of dirt.
Therefore, before buying the product, it is important to consult professionals who are knowledgeable about the subject. If you talk to the Blok team when you have this type of problem, you will definitely use the right product to solve it.
It is very common to think about avoiding infiltrations only after they appear. Of course, it is often possible to resolve them in a calm manner. However, the most important thing is to waterproof the plaster with BlokMassa ST to prevent the appearance of pathological manifestations on the surface when in contact with water and only then do the painting. Painting, by itself, helps to keep the wall protected, but it is not sufficient to guarantee protection against moisture and its consequences. Then, the ideal is to waterproof the plaster and, once painted, use BlokSeal water repellent on top of it. Then yes, you will have a sturdy surface.
To waterproof external walls, in addition to waterproofing the plaster before giving the final finish, the best waterproofing It is BlokSeal, a water repellent capable of protecting the surface against infiltration and its possible consequences, by creating an invisible layer that prevents the passage of water and the accumulation of dirt. It is suitable for walls that receive various types of finishes, such as paint, textures, exposed brick, projected texture, or even if it is made of exposed concrete. In all these cases, the best product for waterproofing external walls is BlokSeal. To learn more, contact Blok.
To choose the right waterproofing agent to protect external walls, I recommend consulting a professional to help you. The choice is very important, because using a product that is not suitable for the purpose you want will not only make you spend money for nothing, but it will not work as expected, running the risk of pathological manifestations resulting from infiltration. In order not to make mistakes, talk to the Blok team to receive the right guidance to use the right product to waterproof your external wall and not have to face future problems.
To apply waterproofing to external walls is very simple. BlokSeal, for example, is the ideal water repellent to apply to external walls to prevent infiltration. First you need to do a good cleaning: the cleaner the surface is, the greater the adhesion of the product. After cleaning, it is very important to wait for it to dry completely, because for the ideal result the surface needs to be clean and dry.
After these steps, simply apply a coat of product to the surface with a brush, sprayer or roller, a thin layer being sufficient to ensure good waterproofing of the substrate. Very easy, isn't it? Even so, it is essential to hire a professional team to perform the service.
That's a fairly common question and I'll answer it with just one word: YES! You can run BlokSeal over the wall paint. However, this does not dispense with the waterproofing of the plaster, right? Once you have finished the wall, you must apply BlokSeal, which is a water repellent capable of creating an invisible layer on the surface, preventing water infiltration and the accumulation of dirt, which also makes it easier to clean the walls. BlokSeal also does not alter the characteristics of the material, not promoting any type of shine on the surface.
If you are going to repaint a wall that is already seeping in, you need to remove The molds with water and chlorine and then scrape the entire affected surface, which will remove the paint. Once this is done, you can begin the process of repainting the wall. After the paint has dried, you must apply BlokSeal, a water repellent indicated to prevent the appearance of infiltration and, consequently, of pathological manifestations, such as molds, efflorescence and stains. Thus, the wall will be protected against moisture, ensuring more durability and conservation.
The wall that is leaning against the ground is called a retaining wall. Retaining walls need good waterproofing to prevent the passage of water that causes infiltration. In this case, the most suitable product is Blok ST, a flexible waterproofing agent for positive hydrostatic pressures that prevents the onset of pathological manifestations resulting from infiltration. It also has excellent adhesion to cementitious substrates, flexibility and waterproofness. If the retaining walls are not waterproofed with the product and in the right way, you will have to face unpleasant inconvenience.
Changing the subject a bit, if you are interested in waterproofing outdoor floors, we made a paper talking exclusively about that. The floors, as well as the walls in outdoor areas, are very subject to the action of water and must therefore be protected. To improve, on porous floors, such as natural stones or cement floors, you must also use BlokSeal to avoid infiltration and unwanted consequences, keeping them preserved and with high durability.
We brought this article in a different format regarding the most common questions regarding the waterproofing of external walls, which are very exposed to the action of water. These are the most common questions we see in our daily lives, but if your case is not here and you need to know more information about this topic, be sure to talk to the team at Blok to understand which product you should use to eliminate seepage on your external walls. I guarantee that we have the right solution for your problem. Count on us to guarantee more quality for your works!
Join the team of the best professionals in the construction industry and always be informed about the greatest advances in your profession.