The Thermakraft One Wrap System
- Abbreviation
- Appraisal number 962 (2023)
- Valid from
- 22/02/2023
- Information provider
- BRANZ Limited,
- Information type
- BRANZ Appraisal,
- Format
- PDF,
Description
The Thermakraft One Wrap System consists of Watergate Plus, Thermakraft 220 and Thermakraft Covertek 403 wall underlays; Aluband and Thermaflash flexible flashing tapes, and OneSeal MultiFit Pipe and Cable Penetration Seals.
The system is used behind wall cladding systems and around framed joinery openings as a secondary weather resistant barrier for walls.
Scope
The Thermakraft One Wrap System has been appraised for use as a flexible wall underlay system for buildings within the following scope:
- the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 for timber-framed buildings; or,
- the scope limitations of NASH Building Envelope Solutions, Paragraph 1.1 for steel-framed buildings; or,
- with direct fixed absorbent and non-absorbent wall claddings; or,
- with absorbent and non-absorbent wall claddings installed over an 18 mm minimum drained cavity; or,
- with masonry veneer in accordance with NZBC Acceptable Solution E2/AS1 for timber-framed buildings or NASH Building Envelope Solutions for steel-framed buildings; and,
- situated in NZS 3604 and NASH Standard Part 2 Wind Zones up to, and including, Very High; or,
- situated in NZS 3604 and NASH Standard Part 2 Wind Zones up to, and including, Extra High when used over a rigid wall underlay in accordance with NZBC Acceptable Solution E2/AS1 or NASH Building Envelope Solutions Paragraph 9.1.7.2.