Subsequent interior waterproofing

Interior waterproofing is used where exterior waterproofing is not technically possible or commercially justifiable. The reasons for this can include surrounding buildings, supply lines that would be difficult to disconnect, or potential impairment of the structural stability. In interior waterproofing, the wall cross-section that is waterproofed from the inside always stays damp. Remmers interior waterproofing systems offer optimum reliability and are a tested and approved solution.

The [basic] system for utility basements
Time is money! For this reason, being able to rely on quick solutions for basements with simple usage profiles is priceless. These solutions have not been designed with optimum (living) comfort in mind, but rather are intended to be the most efficient approach. Remmers WP Top [basic] is the core product of this solution. In utility basements such as garages, storage rooms, boiler rooms etc., the product can be used in combination with the capillary-active low-build finishing plaster SP Top SL [basic] as a condensate buffer.

Application examples
Utility rooms with a normal moisture load. Sorption takes place through the capillary-active, highly sorptive low-thickness finishing plaster SP Top SL [basic]
Storage rooms, garages, bicycle storage areas

Properties
Fibre-reinforced, water-tight plaster
WTA-certified to 2.5 bar negative pressure (corresponds to 25 m water column)
Levelling and waterproofing with the same product
Efficient application in just a few simple work steps
The classic system, tried and tested over decades
The Remmers Kiesol system is a milestone in the story of subsequent interior waterproofing for basements: Developed more than 40 years ago and used hundreds of thousands of times, this renovation system stands head and shoulders above the rest when it comes to protection against moisture and salts. Used as a primer, Kiesol stabilises, compacts and hydrophobises the wall surface, reducing the stresses in the contact zone between the wall and the waterproofing slurry. WP Sulfatex is a slurry with a high resistance against salts, which is applied to the primed surface 'wet-on-wet'. The white renovation plaster used afterwards is an effective condensate buffer that provides sufficient storage capacity for all moisture levels.

Application examples
Tried-and-tested system for basements with normal to high moisture loads. The renovation plaster SP Top white is used for sorption
All types of basements, e.g. basements used for high-value items or basement flats

Properties
Resistant to pressing water
High sulphate resistance and low effective alkali content (SR/NA)
Excellent adhesion to the substrate
WTA-certified to 2.5 bar negative pressure (corresponds to 25 m water column)
Water vapour diffusion open
The flex system for innovative interior waterproofing
Interior waterproofing is normally carried out with rigid, mineral waterproofing slurries. However, these products cannot permanently close dynamic cracks – nor are they impervious to radon. For this reason, Remmers recommends that basements used for important applications are waterproofed with a technically sophisticated combination of the crack-bridging waterproofing slurry MB 2K – with tested imperviousness to radon – and the Power Protect [eco] system, an ecologically and economically sustainable refurbishment and insulation system that has been awarded the German 'Blue Angel' eco-label. Installing the system couldn't be easier. The environmentally friendly Power Protect [eco] panels are primarily made from the heat-insulating mineral perlite and recycled cellulose. They can simply be adhesively bonded onto the MB 2K – the WTA-certified solution for interior waterproofing – by floating, and then plastered over. And that’s it!

Application examples
Basements with normal to high moisture loads. Sorption takes place through the Power Protect [eco] system
All types of heated basements used for important applications
Cracked exterior basement walls

Properties
Resistant to pressing water
Crack bridging
Heat insulating
Impervious to radon
High sulphate resistance and low effective alkali content (SR/NA)
Excellent adhesion to the substrate
WTA-certified to 0.75 bar negative pressure (corresponds to 7.5 m water column)
Self-levelling floor waterproofing with WP Flow

WP Flow is the perfect addition to all Remmers interior waterproofing systems. Just like all the systems designed for walls, WP Flow is tested as a floor waterproofing product according to WTA Code of Practice 4-6, "Subsequent waterproofing of building elements with ground contact" at a layer thickness of 10 mm against rear pressing water loads. In the transition between walls and flooring, this self-levelling floor waterproofing material can be worked seamlessly up to the tried-and-tested Remmers systems, while levelling out uneven surfaces at the same time. WP Flow can be covered with floor tiles after a short time or can be coated with water vapour diffusion-open floor coatings.

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High-quality, radon-proof floor and wall waterproofing

Radon is a radioactive gas that can accumulate unnoticed in houses. After tobacco smoke, radon is the most frequent cause of lung cancer and thus represents an incalculable danger and health risk. Radon can enter living spaces from various sources. These include the building foundation, building materials, the ambient air and water. The decisive factor is how well a building is protected against radon in the area in contact with the ground (basement wall and basement floor).
Radon works its way through cracks, crevices and the smallest openings in foundations and wall formers and also along cable and pipe penetrations; it diffuses through the building materials if there is insufficient protection. MB 2K is not only tested and certified radon-proof, but also tested and certified as interior waterproofing according to WTA.
As a crack-bridging interior waterproofing product, MB 2K provides safe and reliable protection for walls and floors. Material changes are obsolete; floor/wall transitions and uneven areas can all be handled with just one material. This is interior waterproofing at its very best. Long-lasting protection against moisture and radon with MB 2K!

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The German radon guidebook from the Federal Office for Radiation Protection describes the entry of radon into buildings as follows (translated from the original German): “There is negative pressure in the buildings compared to their surroundings. This is caused by the temperature difference between indoor spaces and the outside air as well as air movements around the building. A low negative pressure in the building is sufficient to draw in the radon-containing air from the soil, from a radius of approx. 10 to 20 metres.”

Brochure – Protection against radon: Certified radiation protection for old and new buildings

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Brochure – Subsequent interior waterproofing

Our comprehensive brochure on subsequent interior waterproofing contains all the facts to help you find durable, individual solutions for your project.

More info

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