NZBC Compliance

NZBC Clause B2: Durability. Meets the requirement of NZBC B2.3. 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

NZBC Acceptable Solution E2/AS1, Figures 72A & 72B

Paragraph 9.1.5(b)

DuPont™ FlexWrap™ NF is a "CodeMark™  Certified" peel and stick  flashing tape with a 100% butyl rubber adhesive layer for use around framed joinery openings as a secondary weather resistant barrier.

It is extremely flexible and easily conforms around odd shaped window openings in timber and steel framed buildings.

DuPont™ FlexWrap™ NF is great for sealing corners in window & door rough openings prior to window installation and is compatible with most building materials including concrete and

treated timber.

DuPont™ FlexWrap™ NF can also be used to seal around plumbing pipes, extractor vents and electrical cables that penetrate the building envelope.

DuPont™ FlexWrap™ NF is available in roll size:

152.4mm x 22.9m, 228.6mm x 22.9m

Features and Benefits:

  • CodeMark™ Certified to ensure compliance with NZBC E2/AS1
  • Backed by a DuPont, a 212 year old company
  • Manufactured with a facing of elastic Tyvek® (polyethylene) backed with a self sealing, highly adhesive butyl rubber and a peel back release paper
  • DOES NOT CONTAIN BITUMEN OR RUBBERISED ASPHALT
  • NO ADHESIVE PRIMER REQUIRED
  • NO PLASTIC CORNERS REQUIRED
  • UV RESISTANT FOR UP TO 120 DAYS
  • Butyl rubber adhesives outperform asphalt based adhesive flashings and can be installed in a wide temperature range down to-4ºC without the need of adhesive primer or fasteners to hold in place
  • Excellent air and water resistance and not susceptible to abrasion or delamination during the production process
  • Can be installed in all wind zones including very high
  • Fire resistant (however must be separated from fireplaces, heating appliances, flue and chimneys in accordance with NZ Building Code)
  •   Resistant to surfactants meaning it is suitable for use behind Cedar (endorsed by the Western Red Cedar Association) and suitable for use with LOSP treated timber (conditional upon the solvent in LOSP treated timber having had sufficient time to evaporate-typically 1 week)