Construction Films

Vapour Barrier Films

In the range of vapour barrier Films, the polyethylene and polyamide versions fulfil the stipulations of DIN EN. These standardised special film types are used in interior construction and loft conversion. Furthermore, POLIFILM vapour barrier sheets are equipped with an additional flame retardant and therefore comply with the definition and properties of fire classification E according to DIN EN 13501-1, CE.

Polyethylene vapour barrier films
In loft conversion, these sheets seal the roof against wind and moisture inwards and prevent heat loss as well as maximum protection against moisture outwards. Vapour barrier sheets from POLIFILM stand the test in diverse certified windproofing systems (thermal insulation systems), as a moisture barrier in conventional roofs and also in both steep and flat roofs. For flat roof construction, unfolded films up to 4 m wide specifically designed for this application are available.

POLIFILM'S over 40 years' experience in producing top-quality vapour barrier sheets speak for this product type's convincing properties. The guaranteed surface tension of these films is 38 dyn. That ensures an enormous adhesive force so that adhesive tape sticks particularly well.

In the range of vapour barrier sheets, the PE version fulfils the stipulations of DIN EN. Furthermore, the PE vapour barrier sheets are equipped with an additional flame retardant and therefore comply with the definition and properties of fire classification E according to DIN EN 13501-1, CE.


Polyamide vapour barrier films
In addition to polyethylene vapour barriers, the polyamide version provides the following additional properties.

This version is characterised by a variable SD value. Because a roof must "breathe", this film provides reliable prevention against mould growth. Moreover, the polyamide vapour barrier sheet is fire resistant pursuant to B1 fire classification E in accordance with DIN EN 13501-1, CE.

As they are a composite of polyamide and fleece, polyamide vapour barrier sheets are very resilient. POLIFILM has an independent patent for manufacturing polyamide vapour barrier sheets.

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    • Ines Benke
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      POLIFILM EXTRUSION GmbH
    • Köthener Straße 11
    • Südliches Anhalt OT Weißandt - Gölzau
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