NZBC Compliance

NZBC Clause B2: Durability. Meets the requirement of NZBC B2..3.1 a) 50 years and b) 15years

NZBC Clause E2: External Moisture. Contributes to meeting these requirements

NZBC Clause F2: Hazardous Building materials. Meets this requirement and will not be a health hazard to people 

DuPont™ Tyvek®

Supro Plus Roof Underlay

A High Performance  Underlay compatible

with  most claddings that comes with a built

in adhesive strip to help seal overlaps...

DuPont™ Tyvek® Supro Plus is a "CodeMark™  Certified" synthetic, breathable, building underlay that is fire retardant and self supporting (spans up to 1200mm).

DuPont™ Tyvek® Supro Plus features a built in adhesive tape to provide maximum protection from air and water intrusion at overlaps.

DuPont™ Tyvek Supro Plus may also be used as a weather barrier under suspended timber floors or behind absorbent & non absorbent wall claddings.

DuPont™ Tyvek® Supro Plus is compatible with the following roof applications with

roof pitches greater than 3º :

  • Metal
  • Concrete Tile
  • Clay Tile
  • Asphalt Shingle

DuPont™ Tyvek® Supro Plus is available in roll size: 1500mm x 50m (75m²)

Features and Benefits:

CodeMark™  Certified to ensure compliance with NZBC E2/AS1

  • Manufactured & Backed by DuPont, a 212 year old company
  • Non paper based meaning it may be exposed to rainfall during installation without affecting future durability or performance
  • Manufactured from spun bonded high density polyethylene (HDPE) laminated to a polypropylene sheet meaning it is highly breathable and allows moisture vapour to escape, especially from the interior of the building reducing condensation buildup on the underside of the roof underlay
  • Excellent air and water resistance and not susceptible to abrasion or delamination during the production process
  • Can be installed in all wind zones (including extra high)
  • Fire retardant
  • UV resistant for up to 120 days giving the installer more time (than Kraft Paper) to install roof
  • 1500mm wide roll covers more area per roll with less overlaps
  •  No shrinkage which allows for maximum run lengths during installation
  • White underside provides for light diffusion properties making DuPont™ Tyvek Supro Plus ideal for warehouse applications

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