Perm-A-Barrier® Aluminium Flashing

Self-adhesive sealing membrane for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements. Minimizes air and water vapour flow through the building exterior at transition areas to provide a continuous air barrier and prevent premature deterioration of the building envelope.

General information


Thickness: 1 mm

Roll lengths: 15 m

Uniclass 2015

Pr_35_90_87_04 Aluminium foil tapesPrimary


P10/310 Air and vapour control layer

P10/60 Air and vapour control layer fixed to studs/ joists/ framing

Specification data - Aluminium foil tapes

Product Reference

Perm-A-Barrier® Aluminium Flashing


100 mm

150 mm

225 mm

300 mm


Bituthene Primer S2

Bituthene Mastic

Not required

Standard product features


  • Thickness: 1 mm.
  • Roll lengths: 15 m.


  • Tensile strength, membranes (minimum, ASTM D412): 4.1 MPa.
  • Tensile strength, film (minimum, ASTM D412): 27.6 MPa.
  • Elongation to failure of rubberized asphalt (minimum. ASTM D412): 200%.
  • Pliability (180° bend over 25 mm mandrel, ASTM D1970): Pass at -26°C.
  • Puncture resistance (minimum, ASTM E154): 355 N.
  • Water absorption (ASTM 570): 0.1%.

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