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Damp Proof Membrane

Casali Peel & Stick DPM


High quality modified bitumen membranes for below ground Damp proofing / vapour barrier situations.


  • Can be applied with torch or as peel and stick
  • Can suit all low-risk situations
  • High quality modified bitumen from our trusted Casali brand
  • Can be fully bonded to the substrate
  • Fully compatible with Allco Volclay Waterproofing range
  • Installed by Allco Approved Applicators
  • 20 year product warranty

Allco Casali Damp Proof Membranes are self-adhesive or torch applied damp proof membranes (DPM) for use in low risk, non-hydrostatic conditions, providing a single layer vapour-barrier protection to below ground concrete structures.

Please note that our DPM membrane system is not a Waterproofing System and has only vapour barrier properties. If you require a waterproofing system please see our Volclay range or refer to Allco for clarification.

The Casali Damp Proof system has a variety of membranes to suit all low-risk situations where a vapour barrier is appropriate and can be made up of:

Casali Olympia (sand finish) can be used for:

  • Under slab with torched laps or
  • Walls with torched application

Casali Aderix (self-adhesive with sand finish) can be used for:

  • Walls as a “peel and stick”

Casali Dermafil (chipped cap sheet) can be used for:

  • Walls with torched application and
  • at the transition to above ground

Casali Eradix (specific roof stop membrane) can be used for:

  • Planter boxes

Clause B2 DURABILITY: Performance B2.3.1 (a) not less than 50 years.

Clause E2 EXTERNAL MOISTURE: Performance E2.3.3.

Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Allco Casali Damp Proof Membranes meets this requirement.

Allco Casali Damp Proof Membranes, when installed in accordance with the technical literature, will prevent water vapour from penetrating through below ground concrete structures, to interior spaces where moisture may cause damage. The membrane has a vapour flow resistance of not less than 90 MN s/g.