VShield™ Roof Underlayment
- Abbreviation
- Appraisal number 1069 (2025)
- Valid from
- 29/07/2025
- Information provider
- BRANZ Limited,
- Information type
- BRANZ Appraisal,
- Format
- PDF,
Description
VShield™ Roof Underlayment is a range of synthetic building underlays for use under asphalt shingle roof cladding.
The underlays consist of a woven base scrim, a non-woven scrim on the exposed side and an anti-slip coating on the sheathing side.
Scope
VShield™ Roof Underlayment has been appraised for use as roof underlays on buildings within the following scope:
- the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regards to building height and floor plan area; and,
- with asphalt shingle roof cladding; and,
- situated in NZS 3604 Wind Zones up to, and including Extra High.