Trade Select VapourTech® Brane® VHP

Trade Select VapourTech® Brane® VHP is a very high-permeance vapour-permeable wall wrap, specially designed for cold climate construction where condensation control is essential. This durable, triple-layer membrane allows moisture vapour to escape from wall cavities while keeping external rain, wind, and dust out. It helps builders meet NCC requirements for breathable wall systems, improves energy efficiency, and enhances the long-term durability of both timber and steel-framed homes. VHP is ideal for Zones 6–8, eco-conscious builds, and projects where breathability and protection must work together. Each roll delivers 82.5 m² of coverage, making it perfect for larger wall areas with fewer joins.

Kingspan Alternative

Kingspan AIR-CELL Permishield 70 / ProctorWrap RW
VapourTech® Brane® VHP offers high breathability and durability like ProctorWrap RW, with a softer handling profile — ideal for condensation management behind cladding systems in cooler climates or airtight builds.

Product Specifications

• Vapour Classification: Class 4 Vapour Permeable

• Water Barrier: Yes

• Air Barrier: Yes

• Fire Rating:

  • Low flammability (AS/NZS 1530.3)

  • Flammability Index < 5

• Durability Rating: Medium Duty

• UV Resistance: 90 days

• Wind Pressure Resistance: Excellent

• Wall System Compatibility: Timber & steel frames

Dimensions

• Roll Size: 2750 mm × 30 m

• Coverage Per Roll: 82.5 m²

Material Composition

• Structure: Triple-layer non-woven membrane

• Outer Layer: Soft, durable fabric for easy handling

• Core: High-permeance microporous layer

• Backing: Protective stabilised backing layer

• Colour: Blue branding on soft grey sheet

Best Uses & Applications

• Wall Wrap for Lightweight Cladding:
  Allows water vapour from inside the structure to escape, while keeping out wind-driven rain and dust.

• Cool & Alpine Climate Zones:
  Ideal for use in Zones 6–8 where internal humidity and temperature differences increase condensation risk.

• High-Performance & Passive Homes:
  Supports breathable wall systems in airtight builds, especially when used with high-R wall insulation.

• Renovations & Retrofit Projects:
  Perfect for breathable upgrades behind re-cladding projects.