WITEC Vapour Barrier SK

A special aluminium polyester composite vapour barrier membrane with a cold bonding self-adhesive layer made on a bitumen rubber, with a self-adhesive sealing edge and has a top surface which is suitable for bonding insulation materials using PU adhesive (Terokal TK 395).

General information

Uniclass 2015

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary


J42/10 Warm deck roof covering

J42/395 Air and vapour control layer

Specification data - Reinforced bitumen roofing sheets Enhanced data

Product Reference

WITEC Vapour Barrier SK

Standard product features



Roll size:

1 m x 20 m.


1.5 mm.

Technical properties:

  • Building material class: B2.
  • Cold flexibility (to BS EN 1109): -30°C.
  • Elongation at break: 2.5%.
  • Fire behaviour (to BS EN 1350-1): E-d2.
  • Mass: 1600 gm².
  • Seam sheer resistance (to BS EN 12317-1): ≥ 300 N/50 mm.
  • Sd-value (to BS EN 1931): 1500 m (approximate).
  • Tensile strength (to BS EN 12311-1): > 450/ 350 N (longitudinal/ transversal).

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