Pile Head Waterproofing System


Damage in existing buildings is often caused by leaking pile foundations. Water can enter the building through the construction joints or make its way along the reinforcement steel. The waterproofing of pile heads has to withstand heavy loads from the whole building and needs be easily connected to the area waterproofing. At first, all non load bearing materials and separating substances have to be removed from the surface of the pile head. After that, the surface has to be levelled and re-profiled with KÖSTER Repair Mortar Plus.

This re-profiling must also include the installation of a fillet adjacent to the pile head. KÖSTER NB 1 Grey is used to waterproof the pile head. The waterproofing on top of the blinding layer is made with KÖSTER Deuxan 2C. Embed KÖSTER Glass Fibre Mesh into the fresh first layer. Before pouring the concrete for the floor slab a gliding layer consisting of two layers of customary PE-Foil is applied between the waterproofing and the concrete. Protect the waterproofing layer from mechanical damage when continuing with the application.

System Components:

  • Reprofiling mortar: KÖSTER Repair Mortar Plus.
  • Waterproofing of pile heads: KÖSTER NB 1 Grey.
  • Waterproofing layer: KÖSTER Deuxan® 2C Extratight.
  • Embedded mesh: KÖSTER Glass Fibre Mesh.
  • Gliding layer: PE foil.

General information


J30/110 Cold applied tanking . . . . . .

Specification data

Product Reference

Pile Head Waterproofing System

Product Options

Waterproofing layer:

- KÖSTER Deuxan® 2C Extratight:

Two-component, compression-proof, elastic, polymer modified, fibrated bitumen thick film sealant for safe waterproofing of buildings in accordance with DIN 18195. Resistant to pressurized water, approved by the building authorities. Radonproof.


Third party certifications

  • KIWA: Test Report 1998-14-4679/01N : Deuxan 2C Extratight tested in accordance to DIN 18195

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