Waterproofing protects structures against water infiltration which can cause expensive and irreversible damage. It is mostly invisible after construction is completed. Every day the basement of a building, or the outermost layer of a tunnel, is exposed to intense fluctuations in moisture levels and temperatures, all contributing to its deterioration. Count on Sika to provide long-lasting waterproof systems to protect your project.

Sika has over
100 years
of waterproofing experience, since the first Sika waterproofing product was invented in 1910.
With 50 years of experience, Sikadur Combiflex SG System, the leading solution in adhered tapes, is sold in nearly 90 countries where more than
40,000 km
of tapes have been applied!
3.3 million
square meters of Sikaplan® waterproofing membrane, equivalent to about 330 football fields, was used on the Gotthard Base Tunnel, the longest railway tunnel in the world.

Sika Waterproofing Solutions Have Many Advantages

Sika's solutions are suitable for even the most challenging requirements to keep water in or out of long-lasting structures, such as tunnels, bridges, basements, or balconies.

For drinking water facilities, our waterproofing systems fulfill the most stringent drinking water approvals.

Sika has developed solutions for special site conditions, including microbiological and chemical attack resistant products, high mechanical resistance products, free of physically linked plasticizers and ecologically sustainable products. Find out how Sika waterproofing solutions can contribute to sustainable construction.

We consider the entire waterproofing process to the very last detail and can provide solutions for both new build and renovation projects.

Sika’s long-term experience and know-how to provide both products and system solutions is a key added value for your next project.

Sika Brings Added Value to Projects

Concepts, specifications and detailing
Application training and on-site support
Proven quality control systems
Analysis of leaks in existing structures

Sika Supports in Waterproofing Projects

Below grade basement waterproofing with sheet membrane system
Basement Waterproofing
Waterproofing solutions for tunnels
Tunnel Waterproofing
Bridge in Klosters Switzerland
Bridge Deck Waterproofing
Interior of public drinking water reservoir in Offenberg Germany with Sikaplan waterproofing membrane
Waterproofing Water Tanks
Sport center sauna spa footbath with tile floor adhesive in Fitnesspark Allmend Switzerland
Wet Room Waterproofing
Retention pond in grassy mountains with potable water
Waterproofing Ponds
Swimming pool outside luxury home with lake view
Waterproofing Swimming Pools

Key Brands

SikaTop®
Sika MonoTop®
Sikaplan®
SikaProof®
Sikalastic®
SikaShield®
Sika® Igolflex®

 

Sika® Waterbar
SikaSwell®
SikaFuko®
Sikadur-Combiflex®  
Sika® Dilatec® 
Sika® Injection
SikaFix®

Reference Projects

Inside the Riedberg Tunnel SikaProof

Riedberg Tunnel

Upper Valais region, Switzerland

Riedberg Tunnel

Upper Valais region, Switzerland
2022
Sika stands for expertise in tunnel construction. The know-how of specialists was in high demand for the demanding Tunnel Riedberg project in the Upper Valais region – from technical consultation to the supply and application of waterproofing system solutions.
In December 2016, Luxury Travel Intelligence selected Helena Bay Lodge as the world’s best new luxury hotel for 2016

Helena Bay Luxury Lodge

Northland, New Zealand

Helena Bay Luxury Lodge

Northland, New Zealand
2018
Helena Bay Lodge is located on one of the most beautiful sections of New Zealand’s Northland coastline. Sika was involved in multiple areas across the property, including swimming pool, facade, bathrooms, steam room, kitchen, foyer, gym, SPA etc.
Worker at construction site inside tunnel in Vips Valley in Switzerland

Visp Tunnel (Tuvi)

Visp Valley, Switzerland

Visp Tunnel (Tuvi)

Visp Valley, Switzerland
2018
Concrete admixtures and waterproofing systems were applied for the construction of Visp Tunnel.
The Stavros Niarchos Foundation Cultural Center by night

The Stavros Niarchos Foundation Cultural Center

Athens, Greece

The Stavros Niarchos Foundation Cultural Center

Athens, Greece
2017
The Stavros Niarchos Foundation Cultural Center project included the construction of new facilities for the National Library of Greece (NLG) and the Greek National Opera (GNO), and the creation of the 210,000 m² Stavros Niarchos Park.
Fountain at the Hague Central Station in The Netherlands

Artistic Fountain for the Hague Central Railway Station

Hague, Netherlands

Artistic Fountain for the Hague Central Railway Station

Hague, Netherlands
2016
The Hague Central Station has been modernized in the past years, and as part of this, the Anna van Bueren square became a lively city space at that the public transport terminal. In the space between the station hall and the National Archive is a fountain with seat edges and sprayers.

Construction of Santo Antonio Dam

Porto Velho, Brazil

Construction of Santo Antonio Dam

Porto Velho, Brazil
2016
The project engineers selected a comprehensive Sika system for the remedial waterproofing that was fast, efficient and proven to be very effective.
Infrastructure of El Teniente Mine in Chile

El Teniente New Level Mine

El Teniente, Chile

El Teniente New Level Mine

El Teniente, Chile
2016
El Teniente Mine - New level development
Swimming Pool of the Epirus Sport and Health Center in Ioannina, Greece

Epirus Sport and Health Center

Ioannina, Greece

Epirus Sport and Health Center

Ioannina, Greece
2016
With 12,000 m² Epirus Sports and Health Center is the largest and most comprehensive sports and wellness center in Greece. This center required a vast variety of products and systems among different application fields: additives for mortar production, repair and protection products, waterproofing, tile adhesives, tile grouts and sealants.
Construction workers celebrating inside Gotthard Tunnel in Switzerland

Gotthard Base Tunnel

Erstfeld-Bodio, Switzerland

Gotthard Base Tunnel

Erstfeld-Bodio, Switzerland
2016
Construction of Gotthard Base Tunnel
Hong Kong Airport

Hong Kong International Airport Roof Repair

Hong Kong

Hong Kong International Airport Roof Repair

Hong Kong
2016
Hong Kong International Airport is the world’s busiest cargo gateway and one of the world’s busiest passenger airports. The existing waterproofing system was damaged, therefore the Hong Kong Airport Authority decided to install an additional waterproofing membrane on top of the existing system.
Sika office building in Zurich

Limmat Technical and Office Center

Zurich, Switzerland

Limmat Technical and Office Center

Zurich, Switzerland
2016
From basement to roof solutions provided for the construction of a new Sika's office.
Balcony of the residential complex Mirador De Los Ocobos Armenia, Colombia

Mirador de los Ocobos Residential Complex

Armenia, Colombia

Mirador de los Ocobos Residential Complex

Armenia, Colombia
2016
The 128 apartments of “Mirador de los Ocobos” is a residential complex are in two 8-story blocks with total floor area of 10’747 m². A wide range of Sika system solutions were supplied for this project.
Aerial photo of Ulu Jelai hydropower dam in Malaysia

Ulu Jelai Hydropower Dam

Cameron Highlands, Pahang, Malaysia

Ulu Jelai Hydropower Dam

Cameron Highlands, Pahang, Malaysia
2016
The Ulu Jelai hydropower plant is estimated to generate average 374 GWh of electricity per annum. For the construction of the dam, a wide range of Sika concrete admixtures, anchoring, grouting and waterproofing solutions was applied.

Construction of Tona Dam

Bucaramanga, Colombia

Construction of Tona Dam

Bucaramanga, Colombia
2015
Sika admixtures and other products played an important role to achieve the requirements for each stage of the construction process.
Zagreb International Airport, Croatia

Zagreb International Airport

Zagreb, Croatia

Zagreb International Airport

Zagreb, Croatia
2015
Connecting Zagreb with other parts of Croatia and connecting Croatia with Europe and other parts of the world, is the most important role of Zagreb Airport. Even today, many people consider it the Gate of the city, because every day thousands of people pass through it to and out of the Croatian metropolis.

Construction of Ludeke Dam

Mbizana, South Africa

Construction of Ludeke Dam

Mbizana, South Africa
2014
Sika provided concrete solutions for a dam which provides supply of water to surrounding communities consisting of 266,000 people.
Roof of Kaeng Krachan Elephant Park in Zurich Switzerland

Kaeng Krachan Elephant House at Zurich Zoo

Zurich, Switzerland

Kaeng Krachan Elephant House at Zurich Zoo

Zurich, Switzerland
2014
The Kaeng Krachan Elephant Park in Zurich Zoo is innovative in design and also in the way in which the elephants are looked after.
Neutorbridge at night in Ulm, Germany

Neutor Bridge

Ulm, Germany

Neutor Bridge

Ulm, Germany
2014
In 2014 the City Council decided that the bridge has to undergo urgent repairs of the waterproofing and the resurfacing of the driveway. Sika Germany supplied high quality solutions for this project.
Royal Shakespeare Theatre in the UK

Royal Shakespeare Theater

Stratford-Upon-Avon, UK

Royal Shakespeare Theater

Stratford-Upon-Avon, UK
2014
A seven meters deep basement was constructed as part of the reconstruction to create a new scenic spectacle for the main stage. Due to its proximity to the River Avon, the water table on the site is high, and precautions were required to ensure the building remained watertight.
Applying sprayed concrete at Argessa Hydropower Plant, Oberems, Switzerland

Argessa Hydropower Plant

Oberems, Switzerland

Argessa Hydropower Plant

Oberems, Switzerland
2012
To guarantee future long term earthquake protection, it was decided to refurbish and upgrade the structure of the Argessa hydropower plant. Sika proposed a complete system solution that was accepted and included the detailed design of the sprayed concrete and all of the other strengthening and waterproofing requirements for this project.

Sika's Expert Waterproofing Knowhow

Injection for waterproofing leaking cracks 3d rendering
  • Waterproofing
  • Injection
  • Below-Grade Waterproofing
  • Engineer

How to Select an Injection Material to Seal Leaks?

Leaks in concrete, masonry and natural stone structures can often be securely sealed and waterproofed by injection. However, to make leaking structures watertight for the long term, it’s essential to select the right injection material. On the basis of our extensive technical and practical experience, we have prepared a guide which will help you choose the optimal injection solution for your project requirements.
Hydrophobic impregnation for protection of concrete structures
  • Concrete
  • Waterproofing
  • Watertight Concrete
  • Concrete Admixture

Watertight Concrete System

Waterproof concrete is an impermeable concrete used for long-lasting, durable watertight construction. To improve the impermeability of the concrete, water-resisting admixtures can be added. Nevertheless, design and construction of a watertight concrete structure is a system approach, and waterproof concrete is only one element of it. Water impermeability is determined by fulfilling requirements to limit water permeability through the concrete itself, the joints, installation parts and cracks.
Architectural concrete facade with joint sealing
  • Facade
  • Joint Sealing
  • Building Envelope
  • Article

Considerations for Facade Joint Design

The facade is the face of buildings. In contemporary architecture, the facade is of special interest expressed by large dimensions, unconventional shapes and high material diversity. Especially with these unique shapes and connections, joint design is demanding and prone to mistakes. For integral joint specification, following some rough guidelines will result in a long-lasting and tight building envelope.
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