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Principal

Principal Black Damp Proof Membrane 4m x 12.5m – 500mu 2000 gauge

Principal Black Damp Proof Membrane 4m x 12.5m – 500mu 2000 gauge

Regular price £52.00
Regular price Sale price £52.00
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Product description

Principal black damp proof membrane, 4m x 12.5m – 500mu (2000 gauge). A heavy-gauge DPM that stops ground moisture rising into a floor slab.

Laid under a slab, over the oversite, this membrane blocks moisture wicking up into the concrete and the floor finish above. At 500 micron / 2000 gauge it's the heavier sheet – a tougher membrane for rougher hardcore or where a higher-grade DPM is specified. BBA accredited and compliant with the minimum standard for damp proof membranes under UK Building Regulations.

  • Gauge: 2000 (500 micron) – heavy grade
  • Roll size: 4m x 12.5m
  • Approval: BBA accredited, Building Regs compliant

Lay it on a blinded, level surface so a sharp stone can't puncture it, lap sheets generously and tape the joints, and turn it up the walls to lap onto the DPC. For standard domestic floors, the 1200-gauge DPM is the usual choice. Tape joints with our aluminium foil tape.