Air and vapour barrier DELTA®-REFLEX

Air and vapour barrier made of very tear-resistant, stable four-layer material suitable for roofs and facades.

Saving energy and money! Benefit both from the heat reflection and the more elevated thermal protection.

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    DELTA®-REFLEX in der Anwendung
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    Befestigung von DELTA®-REFLEX
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    DELTA®-REFLEX in der Anwendung
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    DELTA®-REFLEX Nahaufnahme
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    DELTA®-REFLEX beim Einsatz in Industrieleichtdächern
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    DELTA®-REFLEX in der Anwendung


  • Exceptional processing properties and long-term protection of thermal insulation and roof structure
    DELTA®-REFLEX has an Sd value of approx. 150 m and, thanks to its lattice reinforcement, a high tear strength of up to 450/400 N/5 cm. Thanks to the high tensile strength and “boardiness” of the track, it is easy to use and perfectly suitable for the construction site.
  •  Heat reflection
    The product DELTA®-REFLEX provides a optimised heat protection by means of heat reflection (tested by the Institute Fraunhofer Institut in Freiburg, Germany). Saving energy and money!
  • Air and vapour
    Stop connection with the system accessories DELTA®-MULTI BAND, DELTA®-TIXX, DELTA®-LIQUIXX, DELTA®-KOM-BANDDELTA®-REFLEX also offers a safe air and vapour stop for all overlapping elements and connections. As a consequence, no heat energy gets lost through uncontrolled air flow.
  • Structural fire protection for flat roofs
    The product DELTA®-REFLEX offers certified security for large flat roofs in industrial buildings. The requirements of the standard DIN 18234-1 are met. The track width of 3 m is also ideal for use in lightweight industrial roofs - whether on aerated concrete or trapezoidal sheet metal substructures.


Thanks to its layer structure and its material composition the product DELTA®-REFLEX is tear-resistant and therefore easy to use.
The above-average tear strength (of approx. 450/400 N/5 cm) prevents tearing and further tearing in the course of the installation. The stable material enables rapid and clean work, even on difficult details.

Technical data

Material Corrosion-protected, embedded aluminium layer between highly transparent polyester film and mesh-reinforced polyethylene film.
Suitability Air and vapour barrier with high safety reserves in the roof, wall, and ceiling.
Reaction to fire Class E, EN 13501-1
Tensile strength approx. 450/400 N/5 cm, EN 12311-2
Sd-value approx. 150 m
Servicetemperature range from -40 °C to +80 °C
Weight approx. 180 g/m²
Roll weight approx. 13,5 kg
Roll size 50 m x 1,5 m, 25 m x 3 m




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Would you like information on detailed product properties, use cases or other technical topics?
Then feel free to contact our application department on +49 2330 63 578 or

Do you have questions about prices, availability or the status of your order?
Our sales service will help you with these matters on +49 2330 63 636 or