External wall proofing

Tips for external wall proofing before painting

Wall paint undergoes every 5-10 years due to renovation drive carried out by homeowners. External wall painting is one of the parts of the area which has to be properly accomplished, that not only improves the aesthetics of your home but also increase the resale value of your property. For external walls, many people may have observed that dampness and seepage occur due to moisture stored within the concrete because of various reasons, such as rainwater, leaking pipelines, etc. With the water stored inside the masonry, applying the paint is not recommended, as the seepage will worsen the new paint within days of its application. The only option for homeowners is to conduct external wall proofing which will not only help to prevent water from ever going inside your walls or stops the stored moisture leveling out from the wall as well. Below are some tips for external wall proofing before painting your walls so that you are able to get maximum benefit for the increase in resale value.

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Look out for wall cracks

Now, this is a no-brainer: if you see any type of crack on your external wall, you need to fill that up. The same goes for holes or damages on the external wall. This is crucial because if the paint is applied to the wall without addressing these issues, the result will be an uneven surface that not only looks unattractive but also compromises the finish and overall aesthetic of your home. The imperfections will make your paint lose its charm and potentially lead to premature peeling or cracking.

Additionally, cracks, holes, or any other type of damage on your external wall often trap moisture, which can worsen the situation. Over time, the trapped moisture deepens the cracks and creates dampness within the wall. This leads to seepage, which can travel to other areas of the home, damaging the structure and potentially causing mold and mildew growth.

By filling out wall cracks with an appropriate external wall proofing product, you ensure that the integrity of the wall is properly restored, preventing further water damage and structural deterioration. For plaster or concrete walls, the chemicals used to fill out cracks are typically sealant-based, such as special epoxy or polyurethane foam injections. These products are designed to bond tightly with the wall, creating a solid barrier against water infiltration and offering long-lasting protection.

Once your external wall proofing is successfully achieved, it’s a good idea to follow up with wall waterproofing for added protection. This double layer of defense will safeguard your home from future water damage, prolonging the life of your walls and preserving the beauty and strength of your property for years to come. Moreover, this proactive approach to wall maintenance will ultimately save you from costly repairs down the line and provide peace of mind knowing that your home is well-protected against the elements.

Clean your rain gutters

All homes, where your rain gutters exist, should be properly cleaned every 2 years or so, or when you are about to apply color over your external walls. The reason for this somewhat unconventional practice is that rain gutters tend to get clogged if not regularly cleaned. Leaves, debris, and dirt can accumulate over time, blocking the natural flow of rainwater. Once the gutter is clogged, it creates a situation where excessive water accumulates along its path instead of being redirected properly.

When water is unable to flow freely through the gutter system, it can begin to overflow, splashing onto the walls or accumulating along the edges of the roof. The trapped water has a tendency to find its way into the structure, often seeping into the concrete or brickwork. Over time, this moisture can be absorbed by the material, leading to the growth of mold and mildew and eventually causing seepage inside the walls. The result is not only unsightly, unclean external walls but also potential structural damage.

Although cleaning gutters may seem like an optional task, especially for homeowners who may not have gutters or downspouts, it remains a crucial step in maintaining the health of your external walls. Keeping the gutters clean helps prevent water from being stored along the roofline, significantly reducing the risk of water damage. Furthermore, when the gutters are regularly cleared, they help channel water away from the building, preventing any moisture from reaching the wall surface or seeping into the foundation.

In essence, cleaning your rain gutters is a key part of comprehensive external wall proofing. By ensuring the gutters are clear of blockages and allowing water to flow freely, you protect your home from the detrimental effects of water damage, which could otherwise compromise the integrity of your walls. Taking this simple preventive step can save you from costly repairs and ensure the longevity of your home’s exterior.

Choose the right waterproofing contractor

With a lot of options available, it is important to choose the correct waterproofing contractor which will handle all of your stored moisture inside your walls and improves its structure. The tips on finding out how to select the right waterproofing contractor for your home completely depends on the waterproofer products they are experienced in using. Such as concrete waterproofing products, that protect all of your walls that is made up of concrete. For all of those walls where no paint is needed to apply, we use silicate based waterproofing product, which greatly reduces the seepage and leakage of your external walls. Thirdly is to use waterproofing paint, which is among the top option from this list. Not only you can get secured from water seepage and dampness on the walls but also has a pleasant smell into it.

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Add up waterproofing mixture into plaster

As mentioned above, you might need to fill the gaps in order to ensure that external wall proofing reaches its maximum potency. Simply filling cracks is not always enough; to truly protect your walls from long-term damage, it’s essential to reinforce the filling material itself. Although plaster has been the go-to material for years when it comes to filling cracks in both external and internal walls, there’s an added benefit to enhancing it with waterproofing adhesives.

By adding waterproofing adhesive into the plaster mix, you create a more robust, water-resistant layer that helps protect your walls from water infiltration. This is particularly important in areas where walls are exposed to rain, humidity, or other moisture-rich environments. The added waterproofing properties not only improve the plaster’s durability but also act as an extra defense against dampness and water-related damage. The result is a more effective barrier that keeps moisture from seeping into the wall and causing long-term issues such as mold, mildew, or corrosion.

This dual-action approach—combining the filling power of plaster with the water-resistant strength of the adhesive—ensures that even the most vulnerable areas of your external walls are reinforced. It provides a long-lasting solution to serious cracks, creating a surface that is not only visually smooth but also structurally sound. The added waterproofing will protect the plaster from water absorption, preventing the plaster from becoming weakened or discolored by constant exposure to moisture.

By enhancing plaster with waterproofing adhesive, you significantly increase its longevity, ensuring that it maintains its strength and appearance over time. This added protection can be the difference between walls that remain intact and functional for years to come and those that suffer from severe damage and costly repairs. So, when aiming for comprehensive external wall proofing, consider taking this extra step to fortify your walls and give them the best defense against water damage.

Conclusion

External wall proofing for your homes, offices, and industries is mighty important before applying paint into it. Make sure your cracks and dampness are properly taken care of. You might need to hire top waterproofing contractor in Pakistan Like Lakhwa Chemical, which as the ability to provide the service that you are looking for with utmost professionalism and result oriented approach.

 

 

 


Frequently Ask Questions

Q. What is the best waterproofing method for exterior walls?

A. The best method is applying a liquid waterproofing membrane or an elastomeric coating that forms a seamless and durable waterproof barrier.

Q. How to make external walls waterproof?

A. Seal cracks, apply a waterproof coating or paint, and use a water-repellent sealant to protect external walls from moisture.

Q. What is the strongest waterproofing for walls?

A. Polyurethane liquid membrane offers the strongest waterproofing, providing a tough, flexible, and long-lasting solution.

Q. How to seal an outside wall?

A. Clean the wall, fill cracks with sealant, and apply a waterproof coating or silicone-based water repellent for effective sealing.

Q. Which is the no. 1 waterproofing material?

A. Bituminous waterproofing membranes are highly regarded for their reliability, flexibility, and widespread use in exterior applications.

Q. What is the cheapest way to waterproof a wall?

A. Using silicone-based water repellents or waterproof paint is the most affordable method to waterproof a wall.

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