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Dörr-Tiralbit E-ALGV-3 Nsk/Safeguard

Self-adhesive elastomer bitumen vapor barrier sheet with fiber reinforced glass fleece and polyester-aluminumlaminate reinvorcement in a thickness of 3 mm.


Elastomer bitumen is highly elastic ("rubbery") and thereby remains flexible even at low temperatures.

The aluminumlaminate reinvorcement has a very high vapor barrier value (sd-value approx 1.500 m).


The surface texture upside as well as the downside is equipped with fleece.

With the fleece on both sides slip resistance is increased when working on the roof, and thus walking on the bitumen vapor barrier sheet is safer.


The bonding is done by removal of the special foil. The outer half of the longitudinal seam overlap has a double-sided foil lamination. This guarantees a safe scarfing of the overlap because the inner section is already adhered by the self-adhesive bitumen mass. Therefore, a flame entry into the ground is prevented. 

In order to ensure save adhesion of the sheet, we recommend a minimum temperature of +10°C (air and surface) during the application. In addition, at its discretion the overlap is activated with a heat gun or by torching thus a tight bonding is ensured.



Dörr-Tiralbit E-ALGV-3 Nsk/Safeguard is used as bitumen vapor barrier sheet for pitched wooden roof constructions (Warm-, Duo Roof).

  • Coating

    Seam self-adhesive elastomer bitumen
  • Reinforcement

    Fiber reinforced glass fleece + polyster-aluminumlaminate
  • Surface texture upside

  • Surface texture downside

    Fleece, safety stich
  • Thickness

    3.0 mm
  • Width/length of the sheet

    1 x 10 m = 10 m²

Fields of Application

- Vapor barrier sheet for pitched wooden
   roof constructions (Warm-, Duo Roof).