Waterproofing

Where Expertise Reaches New Heights

Benefits of Waterproofing:

1. Structural Protection

The primary goal of waterproofing is to prevent water or moisture from penetrating the building’s structure.
Preserves the entire structure: Continuous water leakage can damage materials, which over time may lead to structural weakening.

2. Financial Savings

Reduces repair costs: Waterproofing prevents the consequences of severe water damage, thereby lowering long-term maintenance and repair expenses.
Energy efficiency: Proper insulation reduces heat loss, making the building more energy-efficient.

3. Health Benefits

Reduces mold growth: Moisture leads to the formation of mold and mildew, which can cause health issues. Waterproofing helps prevent their development.
Good air quality: A damp environment promotes the spread of harmful substances, while waterproofing contributes to drier and healthier indoor air.

4. Increased Property Value

Extended lifespan: Waterproofing enhances the building’s durability, which in turn increases the property’s value.
Preserved aesthetics: To avoid aesthetic issues caused by water damage (e.g. stains), waterproofing helps maintain the building’s visual appeal.

Above the best!

What Do We Mean by Waterproofing?

Waterproofing is one of the most essential components of building protection, preventing rainwater and other sources of moisture from penetrating the roof structure or the interior spaces of the building. Its purpose is not only to prevent leaks but also to extend the lifespan of the structure. Professionally executed waterproofing can result in significant energy savings—especially in the case of flat roofs, where the surface is most exposed to weather and can quickly deteriorate without protection.

Today, proper thermal insulation combined with reliable, long-lasting waterproofing is a basic requirement for energy-efficient roof systems. The roof is the building’s fifth façade, yet it often receives less attention than the visible four—despite having a far greater impact. It is more exposed to the elements, and in the case of functional roofs such as terraces or green roofs, the mechanical load is also significantly higher. We build roofs that meet all of these demands.

Why Are We the Right Choice?

Our company, Lajta | Szig, has over 20 years of professional experience, and our expert team specializes exclusively in large-scale projects. We are leaders in waterproofing for apartment buildings, public institutions, and industrial halls, as quality is our number one priority. The entire execution process—from planning to final handover—is carried out by our in-house professionals, meaning our clients do not have to coordinate with multiple subcontractors.

We conduct regular internal inspections to ensure that every step of the workflow is executed precisely and to a high standard. In addition, we maintain close partnerships with material manufacturers, who support us with their technical experts throughout the process. For more complex issues, they even provide on-site assistance to help us deliver the best possible solutions. We also offer maintenance contracts to preserve the waterproofing system’s excellent condition over the long term—this helps avoid unexpected problems caused by external contractors.

What Sets Lajta | Szig Waterproofing Apart?

Lajta | Szig waterproofing systems offer solutions that are not only durable, but also aesthetically flawless thanks to our specialized technologies.

Who Do We Recommend Our Services To?

For new buildings: We provide support already during the planning phase in selecting the appropriate waterproofing system.
In case of leaks or warranty issues: We professionally and swiftly repair the consequences of defective construction work.
For prevention purposes: We offer solutions that help avoid future problems and costly repairs.

Why Is Maintenance Important?

A well-executed roof waterproofing system can protect the building for decades, but regular inspections and maintenance are essential to preserve its durability. For example, if another specialist—such as an air conditioning installer—accidentally damages the waterproofing, quick intervention can be crucial. Regular cleaning of the roof and inspection of the drains are also of vital importance, as clogged drainage can lead to serious leakage problems.

With our annual inspections, the risk of major damage can be minimized, and the reliable long-term operation of the roof structure can be ensured.

Steps of the process

Structural Protection

- The primary goal of waterproofing is to prevent water or moisture from penetrating the building structure. - It protects the entire structure of the building: Continuous water infiltration can damage materials, which in the long run may lead to structural weakening.

Design Consultation

The first step is an on-site inspection and a detailed discussion of the client's needs. At this stage, we help select the most suitable technology and materials for the specific project. Even if the plan is already finalized, we are happy to support the implementation. However, for the best results, it's recommended to involve us at the beginning of the design phase. Thanks to our construction experience, we can propose solutions that make the project more efficient and cost-effective.

Quotation Preparation and Coordination

We prepare a detailed quotation that includes all work phases and costs. We place special emphasis on ensuring that everything is transparent and understandable for the client.

Project Kickoff Meeting and Scheduling

Along with delivering the schedule, we internally define the construction phases, deadlines, and communication processes.

Waterproofing

The waterproofing work covers the entire process from priming to covering. Depending on the project’s nature, our experienced team performs the liquid-applied waterproofing, PVC membrane installation, or bituminous system application with precision.

Ongoing Inspections

Throughout the implementation, we carry out internal quality checks to ensure every step meets high standards. The results are documented in detailed reports. We use a specialized roof waterproofing inspection device capable of detecting even the smallest defects. All inspections are conducted by our expert with over 10 years of experience, ensuring accuracy and reliability.

Finalization and Handover

After the final building inspection, we hand over the complete documentation, including declarations of conformity, reports, and warranty details.

Annual Review

To ensure the long-term protection of the waterproofing, we offer a maintenance contract. As part of this, we regularly inspect the roof and repair minor damages before they develop into more serious problems.