...no chance for pressurised water

DF strip B1/B2

*General German building authority test certificate (in German)

DF water barriers have a special bituminous coating for waterproofing horizontal and vertical construction joints.

DF water barrier with fixing plate for double wall vertical joints.

DF water barrier with fixing plate for double wall vertical corner joints.

Benefits:
  • Special bituminous coating of entire surface
  • Reliable and quick waterproofing of all construction joints with continuous reinforcement
  • No need for complex concrete upstands
  • DF strip B1/B2 with foot (B-shaped, standing vertical) for high stability and easy fastening
  • Minimum embedding depth of strip in concrete ≥ 3 cm
  • Strip joints fastened with joint clips
  • Minimum overlap of strip joints ≥ 10 cm
  • No corner elements required because strips can be bent back and adapted without any tools
  • Coating ideally protected by two-part siliconized foil

Water barriers

Ungalvanized strip for waterproofing horizontal and vertical construction joints.

SDF strip Q1/Q2

General German building authority test certificate (in German)

Application:
Waterproofing construction joints (no upstands required).

Features:
  • Self-sealing water barrier available in strips or on rolls
  • Coated with butyl-based, adhesive vulcanized rubber profile. Swelling strip to be located on one side of joint on one or both longitudinal sides and, to seal the overlap, on one end.
  • Swelling strip swells automatically in case of water ingress; very good chemical resistance
  • SDF strip highly suitable for precast concrete construction as well
Construction:
  • Strip with adhesive swelling material on one side
  • SDF Q1 with swelling strip on one longitudinal side, typically for use in footing-to-wall joints
  • SDF Q2 with swelling strip on both longitudinal sides, typically for use in wall-to-wall joints
  • Both SDF types with swelling strip on one end face for sealing overlaps

Dimensions:
SDF/Q1-Q2 strip (strips/rolls)
Length       L = 2.00 / 20.00 m run
Width        b = 150 mm
Thickness   t = 0.85 mm

Laying/fixing:
Footing-to-wall joint
  • Place the self-sealing water barrier (SDF Q1 or Q2) on the top reinforcement. The swelling strip must face down and be fully integrated in the first concreting section.
  • Bend and break water barrier at the corner as necessary
  • Secure against tipping and slipping with fixing stirrups (spacing amin = 1.0 m) fastened to the reinforcement
  • Join overlapping ends with joint clips
Wall-to wall joint
  • Integrate SDF Q2 water barrier equally in both wall and concreting sections