Quality
Tested in accordance with recognised DIN EN ISO standards and WTA technical guidelines. Quality assurance, documentation and application follow clearly defined technical standards.
®Request a consultationDamp basement walls, salts or mould: understand the damage and have the cause professionally investigated.
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Moisture in masonryHow wetBLOC works: waterproofing masonry from within against rising damp and lateral moisture ingress.
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Waterproofing existing masonryDiscover the benefits of waterproofing from inside for your building.
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Illustrative imageFrom assessment to follow-up work: the steps for your building.
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Illustrative imageFour reference projects offering insights into the renovation and detailed project reports.
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wetBLOC reference photographCosts, duration, plaster work and warranty: answers to help prepare your enquiry.
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Consultation · VisualisationSystem profile, planning and execution: the fundamentals and application limits of the wetBLOC method.
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Waterproofing existing masonrySelective filling of outer cavities with flowable injection mortar and swellable polymer technology.
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Selective cavity fillingChemical and technical operation in detail: capillary transport, polymer structure and microscopic investigations.
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Material photograph from the wetBLOC documentationPolymer gel, wall sawing, injection resins and water-repellent treatment: the comparison table from our NRW landing page.
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Material photograph from the wetBLOC documentationOriginal material photographs and the research report complement the technical assessment.
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View report · 3 pages
Bremen · Bremerhaven · Delmenhorst
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Köln · Düsseldorf · Dortmund
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Stuttgart · Mannheim · Karlsruhe
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Frankfurt am Main · Wiesbaden · Kassel
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St. Gallen · Chur · Schaffhausen
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Luzern · Emmen · Zug
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Zürich · Winterthur · Uster
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Lugano · Bellinzona · Locarno
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Palma · Ibiza Town · Calvià
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AI illustrative imageOur network is under development.
More about ItalyGet to know our company, the development of wetBLOC and the people behind the system.
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The people behind wetBLOCAnswers on technology, application, warranty and partnership – all in one place.
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Consultation · VisualisationComprehensive renovation in Hannover and remedial treatment in Mannheim: project reports with original photographs and technical details.
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wetBLOC reference photographRemediation of existing properties: requirements, project preparation and coordination for property managers, businesses and planners.
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Remediation of existing propertiesThe partner offering, technical requirements and the route from enquiry to trained application.
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Qualification and practical applicationWe bring together scientific advice, sales, market development, project planning and business customer support with training, site technology and quality assurance. Together with regional specialist partners, we provide long-term moisture protection and preserve existing buildings.
Meet our teamTested in accordance with recognised DIN EN ISO standards and WTA technical guidelines. Quality assurance, documentation and application follow clearly defined technical standards.
Continuous development based on materials science findings and practical experience in building renovation.
Long-lasting waterproofing solutions that preserve the building fabric rather than merely concealing moisture problems temporarily.
Close cooperation with trained and certified specialist contractors who take responsibility for planning, execution and quality.
wetBLOC was developed to provide a lasting solution to one of the main challenges in existing buildings: moisture in masonry. The aim is to limit capillary moisture transport permanently, protect the building fabric and preserve the long-term usability of buildings. The technology is particularly suited to existing, older and heritage-listed buildings.
Rotia International GmbH is the system provider for wetBLOC technology and is responsible for distribution, international market development, building the partner network, training and quality assurance.
Remediation work is mainly carried out by trained, legally independent specialist partners and is supported or taken on by Rotia International where necessary.
International distribution is organised through national distributors and regional support partners. For technical questions, remediation projects or potential cooperation, please contact us using the contact form.
Switzerland
The starting point is the protection of capillary-porous building materials using a polymer-based injection system.
Germany
The wetBLOC documentation describes research and further development with Fraunhofer UMSICHT.
Hannover & Mannheim
Investigations and experience from basement, older building and heritage projects complement the material knowledge.
Germany & Switzerland
Sales, training and technical support connect the system with regional specialist partners.

Sales & market development

Business customer support

Project planning & coordination

Scientific advice

wetBLOC site technology & quality assurance

wetBLOC site technology & quality assurance
Our branch and regional managers support your renovation project on site.

Mannheim & Südhessen location manager

Stuttgart branch manager

Bremen branch manager

Balearic Islands branch manager

Regional management Central Switzerland · Contact for Greater Zürich

Central Switzerland regional manager · Ticino contact · Italy sales director
Let us discuss your building or opportunities to work with wetBLOC.
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