DuPont™ Tyvek® Supro and Tyvek® Pro Wall Underlays

Building Solutions | DuPont™ Tyvek® Supro

DuPont™ Tyvek® Supro and DuPont™ Tyvek® Pro Wall Underlays

Drawing from more than 20 years of international manufacturing experience in the field of construction, DuPont™ Tyvek® Supro and DuPont™ Tyvek® Pro are wall underlays that have been proven worldwide to be durable and to perform in extreme environments.


DuPont™ Tyvek® Supro Wall Underlay

An underlay is a key component of the wall structure, and provides an important element in the weather tightness of a wall cladding system. The underlay acts as a secondary barrier to water ingress from the external environment while also helping to control internally generated moisture. Their function in terms of building durability is important and their on-going performance needs to be preserved to guarantee the life of the building


Features & benefits

Feature Benefit
Unique flash spun HDPE patented product with absorbent and anti-slip non-woven top layer
  • Durability
  • High Tensile strength and lightweight
  • Excellent Water Hold-out
  • Total building envelope system
  • High Water Vapour Permeability / Suitable from Arizona to Artic weather conditions

    Physical properties

    Method Unit Value
    Australian Building Code and AS/NZS4200 Test Method Requirement DUPONT TYVEK SUPRO/SUPRO PLUS (2506B)
    Australian Code Compliance CodeMark ABCB NCC2019 Deemed to Satisfy / Alternative Solution CodeMark CMA-CM40190
    Duty Classification Table 1 AS/NZS 4200.1:1994 Medium Extra Light
    Vapour Permeability ASTM E96 > 0.14µg/N.s > 3.5µg/N.s
    Vapour Resistance ASTM E96 < 7.0MN.s/g < 0.3MN.s/g
    Vapour Control Classification ASTM E96 Class 4 Class 4
    Emittance AS/NZS 4201.5 Non-reflective Non-reflective
    Water Barrier AS/NZS 4201.4 water barrier Water barrier
    Absorbency AS/NZS 4201.6 Unclassified Unclassified
    Resistance to Dry De-Lamination AS/NZS 4201.1 Pass Pass
    Resistance to Wet De-Lamination AS/NZS 4201.2 Pass Pass
    Shrinkage AS/NZS 4201.3 <0.5% 100%
    Electrical Conductivity Classification AS/NZS 3100 Electrically non conductive non-conductive
    Folding Endurance (MD) AS/NZS 1301.423 log10 folds pass
    Folding Endurance (CD) AS/NZS 1301.423 log10 folds pass
    Mechanical Strength - -
    Tensile (MD/CD) AS 1301.448 > 9.5kN/m & 6.0kN/m 6.3kN/m & 5.0kN/m
    Edge Tear (MD/CD) TAPPI T470 65N 305N & 254N
    Burst Strength AS2001.2.19 >200N 356N
    Flammability Index AS/NZS 1530 Part 2 ≤ 5 ≤ 5
    Weight / Width - - 145gsm / 1500mm
    Length - - 50m
    Area - - 75m²