NBS Source
PERM-A-BARRIER® Detail Membrane

Application

For air and vapour barrier applications.

Description

Self-adhesive, rubberised asphalt/ polyethylene detail membrane that is ideal for protecting and sealing critical areas of the building superstructure from damaging effects of the elements. By minimising air and water vapour flow through the building exterior at transition areas, the membrane seals transition and detail areas to provide a continuous air barrier and prevents premature deterioration of the building envelope. Surfaces should be primed with one coat of GCP’s solvent based primer - Bituthene Primer S2.


Features and benefits:

  • Transmits wind loads directly to the substrate.
  • Impermeable to the passage of liquid water and water vapour.
  • Provides dimensional stability.
  • High tear strength.
  • Puncture and impact resistance.
  • No flame hazard; self-adhesive overlaps ensure continuity.
  • Accommodates minor settlement and shrinkage movement.
  • Factory made sheet ensures constant.
  • Non-variable site application.
  • Allows self-sealing around mechanical fasteners.
  • Wide application window.

General information

Material

Polyethylene

Uniclass 2015

Pr_35_90_87_77 Self-adhesive bitumen tapesPrimary

CAWS

H30/261 Air and vapour control membrane

H30/30 Air and vapour control membrane

H31/261 Air and vapour control membrane

H31/45 Air and vapour control membrane

H92/780 Air and vapour control layer

J21/395 Air and vapour control layer

J41/395 Air and vapour control layer

J42/395 Air and vapour control layer

P10/310 Air and vapour control layer

P10/60 Air and vapour control layer

Specification data - Self-adhesive bitumen tapes Enhanced data

Size

1 x 100 mm.

1 x 150 mm.

1 x 225 mm.

1 x 300 mm.

Product Reference

Perm-A-Barrier® Detail Membrane

Air permeability

To ASTM E2178, <0.001 L/s/m².

Elongation

To ASTM D412, >200%.

Puncture resistance

To ASTM E154, >178 N.

Water absorption

To ASTM 570, 24 hours, 0.1%.

Water permeability

2.9 ng/Pa.s.m².

Tensile strength (MPa)

2.8 MPa / 34.5 MPa.

Membrane / Film.

Digital objects

Platform Compatible Version Certified to
Revit
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1

2.1
IFC
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1

2.1
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