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Aluband Window Sealing System

Thermakraft Aluband Window Flashing Tape is a flexible flashing tape system for use around framed joinery openings in conjunction with the Thermakraft Corner Moulded Piece as a secondary weather resistant barrier.

The system is installed into and around the framed joinery opening over the wall underlay and exposed frame to cover both the face and edge of the opening framing. Thermakraft Aluband Window Flashing Tape is also used at joinery heads to seal flashing upstands to the wall underlay.

Key Features
  • Premium tape with the benefits of a bituminous adhesive
  • Easy to use and install with Thermakraft Orange Corner Moulds
  • Can be exposed to the elements for up to 42 days
Scope of Use

Thermakraft Aluband Window Flashing Tape has been appraised as a flexible flashing system for use around window and door joinery openings for buildings within the following scope:

  • constructed with timber framing in accordance with the scope limitations of NZBC Acceptable Solutions E2/AS1, Paragraph 1.1; or
  • constructed with steel framing subject to specific engineering design with building height and floor plan area scope limitations in accordance with NZBC Acceptable Solutions E2/AS1; and,
  • with a risk score of 0-20, calculated in accordance with NZBC Acceptable Solutions E2/AS1, Table 2; and,
  • with wall cladding systems complying with NZBC Acceptable Solutions E2/AS1 or a valid BRANZ Appraisal that specifies a flexible flashing system; and,
  • with flexible wall underlays compatible with the flashing tape and complying with the NZBC; and,
  • situated in NZS 3604 Wind Zones up to, and including, Extra High.
Limitations on Use

Adhesives and Solvents:

After the installation of Aluband, ensure that the edges do not come into contact with solvent based sealants or adhesives. Solvents in these products can adversely affect the adhesion or dissolve the bituminous adhesive and cause it to run. If the application of solvent based adhesives or sealants are necessary, cover the edges with Thermakraft F150 pure foil tape or equivalent foil tape to form a barrier.

Statement of Building Code Compliance

Clause B2 Durability: Performance B2.3.1 (b), 15 years and B2.3.2. Thermakraft Aluband Window Flashing Tape meets these requirements.

Clause E2 External Moisture: Performance E2.3.2. Thermakraft Aluband Window Flashing Tape contributes to meeting this requirement.

Clause F2 Hazardous Building Materials: Performance F2.3.1. Thermakraft Aluband Window Flashing Tape meets this requirement and will not present a health hazard to people.

Data Sheet

Issue 5, Jan 2020

Quick Reference Guide

Issue 2, Nov 2019

Data Sheet: Thermakraft One Wrap System

Issue 4, Nov 2019

Independent Appraisal (BRANZ)

No.878 [2019] 18 Dec 2019

Independent Appraisal (BRANZ) - Thermakraft One Wrap System

No.962 [2017] 28 Aug 2019

Thermakraft Warranty Statement

Issue 2, Nov 2019

Installation and Operation

Issue 4, Jan 2020

Installation Details
Aluband Installation Guide

Thermakraft Ltd are a leading New Zealand manufacturer of Synthetic and Bituminous underlays for the roof and wall with over 30 years experience

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