Foundation walls
Positive waterproofing on the ground side, tailored to ground moisture, water pressure, backfill and ground level detail.
Foundations · Underground walls
Water pressure on the outside.
Continuity around the construction.
Project-specific waterproofing for foundations, basement walls and underground concrete structures. With one strategy for water side, concrete, bilges, joints, penetrations, drainage, protection and addition.
P / I / NWaterside strategy
360°Construction shell
SOILSoil and drainage
Q.ABefore replenishing
Underground and difficult to reach later
The best repair
is the check before replenishment.
Water finds a route through the structure via pores, cracks, pouring joints and penetrations. Once the soil is replenished, recovery on the positive side becomes drastic. That is why the entire shell is designed, inspected and protected per construction phase.
- First determine water load and accessible water side
- Concrete, joints, drainage and membrane as one concept
- No addition without formal detail and surface clearance
Applications
From foundation wall to existing underground construction.
Cellars and parking garages
New construction or renovation of underground spaces with requirements regarding dryness, accessibility and use.
Technical pits and tanks
Waterproofing around floors, walls, penetrations, installations and difficult-to-reach details.
Existing underground walls
Investigate leakage pathways and feasible positive, injection or negative recovery strategy.
Three system strategies
Accessibility determines the route.
Water pressure determines the requirements.
Positive water side
Preferred when the ground side is accessible. Water is stopped before penetrating the structure.
- Surface and details accessible before filling
- Construction itself better protected
- Protective and drainage layer necessary
Integrated new construction concept
Concrete, pouring joints, water stops, injection facilities and external shell are connected per construction phase.
- Early coordination with manufacturer
- Inspection before every pouring and covering
- Take recovery route with you in advance
Negative side or injection
Renovation route from the inside when the water side is not accessible, only after research.
- Water remains in or behind the structure
- Leakage path may deviate from visible point
- Active joints require separate treatment
Positive system building
From concrete wall to protected ground side.
This functional section shows a route on the positive water side. The actual structure follows from water pressure, subsurface and project specification.
View tunnel and construction waterproofing →- 06Soil replenishmentMaterial and compaction tailored to protection
- 05Drainage and protective layerWater conduction and mechanical protection
- 04Waterproof membraneContinuing on the positive water side
- 03Joint and penetration detailsKimmers, pour seams, corners and penetrations
- 02Primer and repairPores, gravel nests, cracks and area correction
- 01Concrete constructionLoad-bearing and released per work area
Critical detail areas
The underground shell must extend everywhere.
Wall-floor-bilge
The transition between foundation slab and wall combines pour seam, geometry and possible water pressure.
Construction and construction joints
Water stops, injection hoses, profiles and connection to surface sealing must be continuous during each pouring phase.
Penetrations and recesses
Pipes, jackets, anchors and installations are given a suitable flange, sleeve or injection detail.
Ground level and plinth
The transition from ground to facade must drain rain, splash water and capillary transport in a controlled manner.
Angles and dilations
Internal and external corners plus movement joints require local reinforcement or a separate profile.
Protection and replenishment
Insulation, drainage, protective plates and soil fill must not damage the waterproof layer.
Failure risks
Six causes of costly repairs after replenishment.
Wrong water side
An inner seal cannot automatically withstand negative pressure or water transport behind the layer.
No drainage strategy
Water accumulation and hydrostatic pressure can increase when drainage and soil building are not coordinated.
Damage during replenishment
Debris, compaction, reinforcement or follow-up work can still pierce a controlled membrane after release.
Interrupted details
One mistake at the bilge, pouring joint or penetration can break the entire underground shell.
Unknown crack activity
Active or structural cracks cannot be treated as a static surface.
No recovery access
After backfilling, outdoor restoration is drastic; control and any injection points must be organized in advance.
From groundwater image to file
Six phases for a controlled underground shell.
- 01
Water and soil image
Record groundwater level, pressure, soil, drainage, leakage pattern and water side.
- 02
Construction research
Assess concrete, pouring phases, joints, cracks, penetrations, existing layers and accessibility.
- 03
Waterproofing concept
Design planes, bilges, joints, injection, drainage, protection and ground level detail as one shell.
- 04
Trial and work plan
Practically confirm preparation, bonding, detailed execution, work areas and covering order.
- 05
Execution and release
Check each zone after preparation, details and membrane separately before protection and replenishment.
- 06
Transfer and management
Bundling drawings, photos, injection points, deviations and inspection data on a location-related basis.
Quality assurance
Control before protection. Release before replenishment.
Demonstrably distinguish between ground moisture, non-pressure or pressure water and seasonal influence.
Strength, moisture, pores, gravel nests, cracks and repairs appropriately prepared.
Gums, work joints, penetrations and corners checked before closing the surface.
Wall, floor, foundation and ground level connect without unexplained interruption.
Consumption, coverage and local reinforcement registered per work area.
Protective plates, insulation and drainage installed without damage.
Material, equipment and compaction tailored to the protective layer and construction.
Photos, drawings, deliveries, deviations and repair points linked to building part.
Technical limits
Waterproofing does not replace structural or geohydrological design.
Without water and soil data, the required system resistance cannot be reliably determined.
Settlement, stability and active cracks are first assessed by a qualified specialist.
Drainage is not a substitute for waterproofing, but it can determine the actual load.
A negative interior solution requires a separate study into water transport, adhesion and repairability.
Our project evidence
A verifiably watertight junction before backfilling.
Approximately 200 m² of foundation waterproofing with primer, geotextile reinforcement and a continuous 2K membrane.
- Approx. 200 m²
- New build
- Reinforced junction
For technical pre-selection
This data determines the feasible waterproofing route.
Wall, floor, foundation, bilge, pouring phases, joints and penetrations.
Groundwater level, pressure, soil structure, drainage and seasonality.
Cracks, gravel nests, moisture, repairs and previous injections.
Positive or negative side, excavation, work space and safety.
Insulation, drainage, protective plate, supplementary material and ground level.
Pouring phases, covering moments, lifespan, drought class and contract documents.
Technical construction screening
Capture the water side before choosing the solution.
Share drawings, groundwater data, concrete condition, details, accessibility and planning. We make visible which research and system choices are necessary for a technically responsible next step.