1. Preparatory work
Chamfer the edge of the foundation projection. Remove adhesion-reducing components.
Plinth waterproofing
Current regulations
When the new DIN 1853 series of standards came into force, the previously valid DIN 18195 series of standards, ‘Waterproofing of buildings’, was withdrawn. Since then, the contents of DIN 18533 ‘Waterproofing of building components in contact with the ground’ have been decisive for waterproofing in the plinth area. With the reorganisation of the national series of standards, more comprehensive planning principles for the selection of waterproofing types have been developed. For example, water exposure class W4-E was introduced specifically for the base of buildings. In addition to waterproofing against capillary water in and under walls, the abbreviation W4-E also defines waterproofing against splash water and ground moisture in the wall base. In addition to the new planning specifications, tried-and-tested waterproofing products that have not yet been standardised, have been included in the standard. The inclusion of crack-bridging mineral waterproofing slurries (MDS) is particularly relevant for the plinth area.
Splash water and floor moisture at the wall plinth
In order to prevent the capillary moisture absorption of plasters, the lowest edge of a plinth render in contact with the ground must be sealed up to at least 50 mm above the top edge of the ground. This protective measure, which Remmers has been emphasising for years, is one of the areas of application that can be carried out with crack-bridging MDS in accordance with regulations since July 2017. On the product side, the versatile structural waterproofing MB 2K offers the best performance in this case. The material is UV-stable, weather-resistant and can also be easily painted over with binder-rich emulsion paints, such as Remmers Color PA.
Plinth waterproofing in detail
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Single-shell masonry, basement
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Single-shell masonry, no basement
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Single-skin masonry with WDS system, basement
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Double-shell masonry, no basement
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Double-skin masonry with plaster
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Connection to full-length windows and doors
Plinth waterproofing in timber frame construction
In the future, timber frame construction will play an increasingly important role in building practice. At the same time, the energy requirements and the associated moisture requirements are becoming increasingly ambitious. Constructions should consume as little or no energy as possible during operation, conserve resources and, of course, be safe in the long term. This means that moisture ingress from both outside and inside, via condensation, must be reliably prevented. Protection against moisture naturally plays an even more important role in timber frame construction than in mineral constructions. For this reason, DIN 68 800 does not currently stipulate that timber sleepers should be installed below ground level, as there is considerable potential for damage due to increased moisture exposure. This approach is also logical and understandable when considering the classic options with regard to structural waterproofing. However, it is also often very costly because at the same time there is an increasing demand for barrier-free access to the building. With the emergence of new materials for waterproofing buildings, it is therefore necessary to take a closer look at this point.
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Brochure – Structural waterproofing of new buildings
Our comprehensive brochure on the waterproofing of new buildings with modern CAD or 3D detailed drawings and special solutions contains all the facts to help you find durable, individual solutions for your project.
