Introduction to the horizontal barrier

A horizontal barrier is an essential component of structural waterproofing that prevents ground moisture from rising capillary in the masonry. Waterproofing is a fundamental measure to permanently prevent the penetration of water and moisture into the building. This process can lead to various types of moisture damage, such as mold growth, plaster flaking and salt efflorescence. Horizontal waterproofing is therefore essential in order to dry out masonry and ensure that the building is waterproofed. In the following, we will discuss the function and effect of the horizontal barrier and safety instructions for its application.

The importance of masonry waterproofing

The waterproofing of masonry is a key factor in maintaining the value and functionality of buildings. Without effective waterproofing, moisture can penetrate the masonry unhindered and cause considerable damage. The capillary effect ensures that water rises from the ground into the walls and thus contributes to moisture penetration of the masonry. This not only leads to visible problems such as mold growth and peeling plaster, but also significantly impairs the thermal insulation of the building.

Professional masonry waterproofing permanently protects the masonry from moisture and prevents harmful salts and moisture from accumulating inside the walls. This significantly reduces the risk of mold damage and other structural damage. At the same time, a dry wall contributes to a pleasant indoor climate and reduces energy costs, as dry walls have a better insulating effect. The service life of the entire building is considerably extended by professional waterproofing, as the building fabric remains protected from harmful influences. All in all, masonry waterproofing is an indispensable part of any building waterproofing and should be given top priority in both new and renovated buildings.

What is rising damp and how does it occur?

Rising damp is a physical phenomenon in which moisture is transported upwards through capillary structures. This effect is caused by capillary action: the fine pores act like tiny tubes in which moisture can rise against the force of gravity.

Everyone knows the principle from everyday life: a sponge absorbs moisture, a blotting paper draws ink into itself. Exactly this mechanism also takes place when moisture from the ground penetrates the structure via the foundation.

Older buildings, especially those built before 1970, often lack a functioning horizontal barrier. In an old building, this can lead to visible mold growth and crumbling plaster. Barrier layers are prescribed as approved components in new buildings to protect the walls from rising damp, while they are often missing or damaged in old buildings. But even in newer buildings, the existing barrier layer can become damaged over the years.

Why is combating rising damp so important?

Damp walls are more than just an aesthetic problem. Continuous moisture penetration can damage not only individual walls, but the entire masonry and impair its stability and function. Continuous moisture penetration can lead to serious damage:

1. Mold growth on the wall: Moisture provides ideal conditions for mold, which not only smell unpleasant but can also be harmful to health.
2. Salt efflorescence and saltpetre: Moisture transports salts from the soil. During evaporation, these salts crystallize on the surface and leave behind the familiar white spots.
3. Destruction of the mortar: The rising damp continuously dissolves lime from the masonry mortar, causing it to lose its binding strength.
4. Thermal insulation loss: Damp constructions conduct heat significantly better than dry ones, which leads to higher heating costs. Even small amounts of moisture can significantly impair the thermal insulation capacity.
5. Frost damage: In winter, the contained moisture can freeze and lead to cracks due to volume expansion.

Functionality and effect of the horizontal barrier

The horizontal barrier works by forming a barrier in the masonry that prevents the capillary absorption of moisture from the soil. This is achieved by silicification of the masonry, which forms a water-impermeable capillary barrier. The horizontal barrier can be applied using various methods, such as the injection method or the masonry sawing method. The choice of method depends on the type of masonry and the severity of the moisture damage. It is important that the horizontal barrier is applied correctly in order to achieve an optimum effect.

Types of horizontal and vertical barriers

There are various types of horizontal barrier, each of which is suitable for different areas of application. The content overview shows the most common methods:

The selection and professional application of suitable products is crucial for an effective horizontal barrier, as this is the only way to achieve a permanent and effective moisture barrier.

In addition to the horizontal barrier, a vertical barrier may also be necessary in some cases, especially in the case of lateral water pressure. The combination of horizontal and vertical barriers offers optimum protection.

What to do if the wall is damp? The solution with a seal of quality

A horizontal barrier forms a water-repellent barrier that prevents moisture from rising from the ground. Our products bear the quality seal for tested effectiveness and durability.

In new buildings, barriers are usually installed directly during the construction phase. In the case of old buildings or damaged layers, a barrier must be installed retrospectively.

The Isofin method: Effective solution with a seal of quality

The special advantages of Isofin:

• No clogging of the pores: Unlike silicification, Isofin does not clog the pores.
• Restore natural thermal insulation: After treatment, the pores fill with air again instead of moisture.
• Simple application: The application only requires a drill, Isofin products and some mortar.
• Long-lasting effect: The hydrophobic effect lasts for 20 years and beyond.
• Short delivery time: Our products are usually delivered to you within 1-3 working days.

How to create a horizontal barrier with Isofin yourself - instructions

The independent creation of a horizontal barrier with Isofin (injection fluid specially developed for sealing masonry) is an effective way of permanently protecting masonry against moisture. In addition to the Isofin product, you only need a drill, suitable masonry drill bits (approx. 12 mm) and a measuring tape. Start by thoroughly cleaning the masonry and removing all loose components so that the injection fluid can work optimally.

Then drill the boreholes at a distance of 25 cm along the desired barrier layer (halve the distances for concrete, please refer to the Isofin manual for further information). Now fill the prepared drill holes with the Isofin injection liquid. Ensure that the correct amount of liquid is applied in accordance with the enclosed brief instructions (varies with different wall thicknesses) in order to create a complete barrier against moisture.

Now allow the masonry to dry out. The process can vary greatly depending on the degree of moisture penetration. After drying out, carefully close the drill holes with simple mortar. Allow the masonry to dry sufficiently before carrying out further measures such as plastering or painting.

Please note that the professional execution of the work is crucial for the success of the waterproofing. If you are unsure about the application or the assessment of the masonry, call our expert Hendrik Flügge. This will ensure that your masonry is optimally protected against moisture and that no problems arise in the long term due to moisture penetration or mold growth.

How to create a horizontal barrier with Isofin yourself - instructions

Creating a horizontal barrier with Isofin is relatively simple and can be carried out without any special prior knowledge. Our detailed instructions will guide you through the process:

1. Drill holes: Drill holes with a diameter of 10-12 mm into the masonry to be treated at a distance of 25 cm. The holes should be drilled diagonally downwards at a 45 degree angle.
2. Inject Isofin: Insert the Isofin products into the drill holes. The construction removes the product automatically. The quantity required depends on the cross-section.
3. Seal the drill holes: After the products have run out, remove the empty bottles.
4. Drying phase: Allow sufficient time for drying and then seal the holes with waterproof mortar.

Costs and materials

The cost of a horizontal barrier can vary depending on the method and the materials used. In general, the cost is around 100 euros per running meter. The materials required include:

• Isofin products: The central means of sealing.
• Drill with 12mm masonry drill: For pre-drilling the holes for the Isofin bottles.
• Borehole filling mortar: For sealing the boreholes after injection.
• Measuring tape: For measuring the distances between the drill holes (brief instructions are enclosed with your order).

The current delivery time: The product Isofin is ready for shipment the next day.

For larger orders of approx. 500 bottles or more, you are welcome to request an individual offer.

All products bear our quality seal and have a guaranteed fast delivery time of just a few working days

Preparation and implementation with detailed content

The preparation and implementation of the horizontal barrier is incredibly simple. Here is the content of the basic steps:

1. Cleaning and drying: The construction must be cleaned before use.
2. Drill holes: Drill holes 25 cm apart in the structure to be treated. Make sure you drill the holes in the right place to ensure effective sealing.
3. Injecting the agent: Insert the Isofin product into the drill holes.
4. Drying phase: Give the construction sufficient time to dry.
5. Sealing the drill holes: After the agent has completely penetrated and the wall has dried, seal the drill holes.

The drying phase: What to consider after construction

Patience is required after the horizontal barrier has been created. The content of this phase is crucial for success:

• Ensure good ventilation: the better the air exchange, the faster the construction dries. This is particularly important to shorten the drying time.
• Use a fan if necessary: A fan can shorten the drying time.
• Wait with the plastering: Only when the construction is completely dry should further measures follow.
• Pay attention to evaporation aids: Drying appliances can lower the humidity.

Special cases and frequently asked questions about the content

Conclusion: An investment with a seal of quality

Creating a horizontal barrier is a sustainable solution against rising damp and an important measure to protect your building fabric. A positive evaluation of our products by customers confirms the effectiveness and quality of our solutions. We ask every customer to leave a review of our products after purchase. All reviews are published after verification to ensure maximum transparency and trust for future customers. The Isofin system provides you with a proven, easy-to-use method.

Remember: The costs for a horizontal barrier are significantly lower than the costs that can arise from long-term moisture damage. The short delivery time allows you to start your project quickly.

Summary of the horizontal barrier in masonry

Overall, the horizontal barrier is an important component of structural waterproofing that prevents soil moisture from rising capillary in the masonry. Correct application of the horizontal barrier can dry out the masonry and ensure that the building is waterproofed. The use of horizontal barriers can prevent various types of moisture damage and extend the service life of the masonry.