Hydrophobization of facades

The goal of hydrophobization, a critical procedure in contemporary building maintenance and design, is to improve the resilience and aesthetics of external surfaces. The exterior of buildings is treated by applying hydrophobic coatings, which deter water and stop moisture infiltration. By doing this, hydrophobization prevents the facade from being harmed by water and also inhibits the growth of mold, mildew, and algae, all of which have the potential to gradually erode the building’s structural integrity and aesthetic appeal.

The creation of a barrier that renders building facades water-resistant is the main objective of hydrophobization. This is accomplished by applying coatings that have been specially designed to chemically bond with the surface of materials such as stone, brick, and concrete. Water molecules are effectively repelled by silicone or silane compounds, which are commonly found in these coatings. Rainwater therefore beads up and rolls off the surface instead of penetrating into the material, which lessens the possibility of water absorption-related cracks, stains, and efflorescence.

Hydrophobic coatings provide extra advantages for building maintenance in addition to guarding against water damage. By lowering moisture absorption, they can raise a structure’s thermal efficiency, which lowers energy costs and preserves the effectiveness of the insulation. Furthermore, UV stabilizers, which guard against sun damage and stop color fading and material deterioration from harsh weather, are frequently included in these coatings.

Practically speaking, hydrophobization makes building exterior cleaning and maintenance easier. Water-resistant surfaces make it easier to remove dirt and pollutants during regular cleaning procedures because they are less likely to stick to them firmly. This lessens the frequency and level of maintenance needed over the building’s lifetime in addition to maintaining the facade’s aesthetic appeal.

What facade does hydrophobilization need

The environment that the facade is in contact with can be detrimental to it. The effects of moisture and UV radiation can be reduced thanks to recent advancements in the field of building material protection. This option is considered and implemented when building new homes. But there are a ton of old, still-in-use buildings in addition to the new ones.

Facade that needs to be hydrophobized

The concept of hydrophobization is relatively new, and not all private home owners are aware of it. As a result, it’s critical that you become familiar with the list of indicators, since their existence will indicate whether further protection is required for the structure.

Sign No. 1. The presence of heights

Any building material’s porous structure allows water molecules and other salts that are part of its composition to circulate inside of it. Because of the makeup of substances, this is an inevitable process. Water molecules rise to the facade’s surface and evaporate when the surrounding temperature is positive. Their corresponding salts persist on the substance as a white sediment. This one is gloomy.

The longevity of the house is adversely affected by the presence of heights.

Since salt solutions don’t freeze, they form all year long. However, the intensity of the rings’ appearance is noticeably diminished during the winter. Winter slows down the evaporation process and causes salts to crystallize inside the material, destroying its structural integrity. Consequently, the facade’s estimated service life is lowered.

Cracks in a wall of bricks

Sign No. 2. The presence of wet and mud spots

The materials foam concrete and aerated concrete are categorized as extremely hygroscopic. You can frequently see wet patches and water droplets on the surface of these construction stones. The wet surface of the facade became accumulated with dirt and dust from the air, significantly diminishing its aesthetic appeal. This holds true for brick, concrete, natural or artificial stone, foam, and aerated concrete.

Unfinished area of the wall

The region’s climate is very significant. Increased air humidity accelerates the process of material destruction. As a result, it is not advised to construct buildings made of porous and hygroscopic materials in coastal areas.

Sign 3: Mold and fungus are present

When pathogenic microflora are present, there is an elevated moisture content in building materials, which can lead to damage and early aging.

The facade’s mold

Sign 4: Water droplets sticking out from the facade

Based on the aforementioned information, we can draw the conclusion that it makes sense to take proactive measures to protect the facade and stop the onset of erosion and other harmful processes. A complex of organic and chemically based funds has been developed for this purpose. Additionally, the procedure for applying them is known as "hydrophobilization." Her necessity is beyond dispute.

Wetness on the wall’s exterior

How to make a hydrophobization of the facade

Hydrophobization is the final step in the series of actions known as facade protection. Building materials’ surfaces must first be cleared of dust and debris and sanitized before receiving a protective coating. This is not a hard process, but it is challenging. However, the end effect is assurance regarding the robustness and longevity of the walls, floors, and foundation.

When choosing a product based solely on its chemical makeup, personal protective equipment must be worn, such as boots, long-sleeved clothing, a gauze mask or respirator, and glasses.

Personal safety measures

Painting brushes are not appropriate because a large area will need to be processed. You will need either devices for spraying solutions or a roller with a long handle in order to apply the compositions.

A long-handled roller

Equipment for surface staining or disinfection is the best option. The Taiver painting devices, the Wiwa airless spray device, and the disinfectant solutions of Storm can all be used.

Spray painting apparatus without air

A ladder will be necessary to perform work at the height.

Businesses that specialize in facade protection provide a wide range of services, such as:

• removal of mud with a high -pressure apparatus using and without the use of chemicals;
• acid cleaning of facades and inter -story floors (including decorative concrete);
• removal of heights;
• The washing of facades from any building material;
• Application of a hydrophobisator.

In rare instances, completing the entire range of work is required. Select the necessary services from the list for a particular building. Should the decision be made to hydrophobize the facade on your own, you should stock up on the tools required for the job and be ready for a lot of work. Generally speaking, in order to safeguard the structure with a limited lifespan, you’ll need:

• The facade washing (if necessary);
• removal of local heights (if necessary);
• removal of fungus and mold (if necessary);
• Application of hydrophobic composition.

Hydrophobization of the facade requires a comprehensive set of tasks.

Facade hydrophobization is a contemporary technique that improves a building’s resilience and visual appeal. Hydrophobic coatings are applied to external surfaces, like roofs and walls, to form a moisture- and water-resistant barrier. By keeping water from seeping through the facade material, this barrier helps to prevent structural damage over time.

The ability of hydrophobization to repel dirt and water lessens the need for regular upkeep and cleaning, which is one of its main advantages. For homeowners and property managers, this reduces long-term maintenance costs in addition to saving time and effort. Furthermore, hydrophobic coatings help the building look cleaner and more appealing by maintaining a dry and clean facade.

Hydrophobic treatments can also enhance a facade’s ability to insulate against heat. These coatings assist in maintaining the thermal efficiency of insulating materials, like mineral wool or foam boards, which are frequently used in contemporary construction, by preventing water ingress. Because less heating and cooling is required, this can result in energy savings and improve the environmental friendliness of buildings.

To sum up, hydrophobization of facades provides a useful and efficient means of preventing moisture damage to buildings, improving their aesthetic appeal, and boosting energy efficiency. Homeowners and property managers can extend the life of their buildings, save maintenance costs, and create a more sustainable and clean living space by investing in hydrophobic coatings.

A key technique in contemporary architecture to improve the longevity and aesthetics of buildings is hydrophobization of facades. Facades that have hydrophobic coatings applied stay cleaner, resist stains, and weather more gracefully because they repel water and do not absorb moisture. This procedure is a sustainable option for preserving the look and structural integrity of buildings over time because it not only shields them from moisture-induced structural damage but also lowers maintenance costs.

Video on the topic

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Hydrophobizer / impregnation for brick and stone. How to protect the facade

Hydrophobization and cleaning of facades from UMMIX

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