Class 4 Vapour Permeable Membrane

Keep walls dry.
Lets buildings breathe.

Complies with AS/NZS 4200.1

Sizes

  • Width: 1500mm x 30m length – 45m2 Coverage
  • Width: 1370mm x 30m length – 41.1m2 Coverage

Tested. Certified. Trusted

PROPERTY TEST METHOD REQUIREMENT
CLASS 4 (MINIMUM)
RESULT


Water Vapour Transmission Rate (WVTR)

ASTM E96
(Water Method)
≥ 1.1403 μg/N·s
(Class 4 minimum)
WVTR
567.6 g/m²/24 hr

Permeance
4.84 × 10⁻¹⁰ g/Pa·m²·s


Vapour Permeability
AS/NZS 4200.1
(Clause 5.4)
≥ 2.0 g/m²/24 hr 3.6 g/m²/24 hr
PASS

Water Resistance
AS/NZS 4200.1
(Clause 5.3)
≥ 300 mm > 400 mm
PASS


Air Resistance

AS/NZS 4200.1
(Clause 5.2)
≤ 0.02 L/s/m²
at 75 Pa
0.01 L/s/m²
PASS


Wind Resistance

AS/NZS 4200.1
(Clause 5.5)
Pass at 2500 Pa > 2500 Pa
PASS

Water Penetration
AS/NZS 4200.1
(Clause 5.1)
No penetration No penetration
PASS

Flammability Index
AS 1530.2 ≤ 5 1
PASS

Specification

Width (mm)

Length (mm)

Thickness (mm)

Density (kg/m3)
M2 Per Pack
1370mm
30m
Quantity/ Bag (Pcs)
Quantity/ Bags per Bale
Load ability 1×40’HC (Pcs)
Quantity Pcs / Bale (Pcs)
No. of Bales per container
Load ability 1×40’HC (M2)

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