Safeguard Basement System 4 – Existing Basement Refurbishment

Safeguard Basement System 4 – Existing Basement Refurbishment

Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Safeguard Europe Ltd

Dual layer basement refurbishment waterproofing system.

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+44 (0)1403 210204

For the refurbishment of an existing basement.


A dual layer waterproofing system comprising of a crystalline active tanking slurry and maintainable cavity drainage system.


  • Drybase® Crystalline Active Slurry.
  • Oldroyd Xv - Black, studded cavity drainage membrane.
  • Oldroyd Aquadrain - Perimeter drainage channel for basement waterproofing.
  • Oldroyd Xv20 - Black cavity drainage membrane with extra-large studs providing greater drainage and flow capacity than standard cavity drain membranes.
  • Sentry Sump Systems - Basement pumping system.
  • Oldroyd Sealing Rope.
  • Oldroyd Overseal Tape.


For the refurbishment of an existing basement.

General information

Uniclass 2015

Ss_32_20_95_65 Plastics studded membrane internal wall damp-proofing systemsPrimary


J40/290 High density polyethylene/ polypropylene studded cavity drain membrane

Specification data - Plastics studded membrane internal wall damp-proofing systems

Product Reference

Safeguard Basement System 4

Waterproofing slurry

Drybase® Crystalline Active Slurry

Cavity drainage membrane



Oldroyd Xv and Oldroyd Xv20


Oldroyd Sealing Rope

Double sided butyl tape, 30 mm wide.

Oldroyd Overseal Tape

For sealing flange joints, 200 mm wide.

Perimeter drainage

Oldroyd Aquadrain


Sentry Sump System Pro 303 and Sentry UPS 3000 Battery Back-Up System

Special order

Insert requirements, more than one pumping system may be needed for larger projects, consult manufacturer for information.

Standard product features

Drybase® Crystalline Active Slurry:

  • Coats: Concrete slabs (under pressure): Brush, spray or dry sprinkle in one coat; concrete walls (under pressure): Brush or spray in two coats; construction joints: Brush in one coat.
  • Application rate: Concrete slab (under pressure): 1.2 kg/m² (one coat); concrete walls (under pressure): 1.5 kg/m² (two coats); construction joints (under pressure): 1.5 kg/m² (one coat).
  • CE marked to BS EN 1504-3.

Oldroyd Xv:

  • Thickness: 0.5 mm.
  • Stud height: 7 mm.
  • Compressive strength: 160 kN/m².

Oldroyd Aquadrain:

  • Size (w x h x l): 80 x 50 x 2000 mm.
  • Colour: Green.

Oldroyd Xv20:

  • Thickness: 0.8 mm.
  • Stud height: 20 mm.
  • Compressive strength: 100 kN/m².

Third party certifications
  • 00/3733
  • 18/5549
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