Concrete slabs that leak during the rainy season? That can be a headache! Well, one of the most effective ways to prevent this problem is with the application of waterproofing. But unfortunately, there are still many who take this process lightly, either due to a lack of information or a rush for instant results. As a result, instead of being leak-proof, the dak is even more easily damaged.
The 2023 construction survey noted that more than 60% of leakage cases came from concrete foundation waterproofing errors. This figure certainly cannot be underestimated. Therefore, it is very important for you to know the mistakes that often occur when applying waterproofing on concrete slabs. What are they? Let’s see until the end!
Most Common Mistakes in Waterproofing Concrete
Coating concrete with waterproofing does look easy. But, if done carelessly, the results can be bad. Well, there are various most common mistakes that often occur during the waterproofing process, namely:
1. Not Cleaning the Surface Properly
There is one concrete deck waterproofing mistake that occurs most often, namely skipping the cleaning process. In fact, dust, dirt, and oil can make the coating not stick perfectly.
Therefore, before starting, make sure the surface of the deck is completely clean and dry. Use a wire brush or other tools for maximum results.
2. Skipping the Primer Layer
Many workers immediately apply waterproofing without using a primer first. Even though this is an important step. The primer layer itself helps the main material stick firmly. Without it, waterproofing is easy to peel off and not durable.
3. Too Thin Layer
To save money, some people make the waterproofing layer very thin. But, this is actually detrimental. A layer that is too thin is unable to withstand water pressure. Well, ideally, the thickness should be at least 1.5 mm for best results.
4. Not Waiting for the Layer to Dry
Some people rush to recoat before the bottom layer is completely dry. This is very risky. The undried layer can be bumpy or peeling. So, wait for the recommended time on the product.
5. Ignoring Small Cracks
Small cracks are often considered unimportant. In fact, they can be the main source of leakage. Therefore, cracks must be patched first with sealant before the main process begins.
Well, these concrete deck waterproofing mistakes can have a big impact if not handled from the start. The solution? Proper planning and work process when applying waterproofing to concrete slabs.
How to Improve Concrete Waterproofing Results
Want to maximize waterproofing results? To avoid problems in the future, there are several important points that should be considered from the start. What are they?
1. Choose Materials According to Needs
Each project has different needs. Some concrete blocks need elastic materials, while others are suitable for using water-based coatings. For that, recognize the type of deck and your environmental conditions first. Then choose the appropriate waterproofing material.
2. Avoid Application During Bad Weather
The weather also has a big influence. Do not apply waterproofing when the air is too humid or rainy. The ideal temperature for work is above 10°C. Make sure the weather is favorable so that the material can stick perfectly.
3. Use Professional Services
If you are not sure about the technique, use professional services. They are more experienced and know the technical procedures. The workmanship is also neater and guaranteed. You can rest easy without the hassle of constant repairs.
4. Routinely Check and Treat Dak
Waterproofing is not just about the application. Maintenance is also important to maintain its durability. Check the deck at least 1-2 times a year. If there is minor damage, repair it immediately before it expands.
In essence, waterproofing application is not a job that can be underestimated. Even small concrete foundation waterproofing mistakes can lead to big problems, such as leaks, structural damage, and significant repair costs.
Well, for maximum and long-lasting results, make sure every step is done correctly. Starting from surface preparation, material selection, to the right application technique. And if you are looking for a reliable waterproofing solution, products from PT Hissan Trading Indonesia can be the right choice!
We provide a variety of quality products, one of which is Estoproof 3P/4P, which is an elastomeric bitumen membrane suitable for concrete roofs, retaining walls, and areas that need maximum protection. There is also Estoproof 200 which is a self-adhesive waterproofing with cross laminated film, for applications that require high flexibility. And Estoproof EPDM, a 100% EPDM rubber membrane that is resistant to extreme weather and provides a long-lasting waterproofing system.
Complete right? So, don’t let your concrete foundation become a source of problems in the future. Protect your building with the right and reliable waterproofing solution!
