Platinum Plus Roof Underlay
- Abbreviation
- Appraisal number 1167 (2021)
- Valid from
- 18/11/2021
- Information provider
- BRANZ Limited,
- Information type
- BRANZ Appraisal,
- Format
- PDF,
Description
Platinum Plus Roof Underlay is a synthetic building underlay for use under roof claddings.
The underlay consists of a micro-porous, water-resistant film laminated to two layers of non-woven, spun-bonded polyolefin and is coloured black on top and grey on the bottom.
Scope
Platinum Plus Roof Underlay has been appraised as a self supporting roof underlay on 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; and,
- with masonry tile roof cladding; and,
- with metal tile and profiled metal roof cladding; and,
- situated in NZS 3604 Wind Zones up to, and including, Extra High.