- Class 1 Vapour Barrier, Air and Water Barrier
- Superior strength and puncture resistant
- Ideal for all BALs in bushfire-prone areas
- UV resistance - up to 45 days
SilverSark® HVB is as high vapour barrier wall wrap designed specifically for use in Climate Zone 1 and regions north of the Tropic of Capricorn in Climate Zone 2. The reflective foil side provides extra R-Value when installed facing an air cavity, and the multi-layer structure provides superior strength, flexibility and durability.
Classified as Class 1 Vapour Barrier, SilverSark® HVB functions as a barrier to vapour, radiant heat, moisture ingress, draughts and dust penetration.
SilverSark® HVB is a flexible four layer product made with a combination of anti-oxidant UV-stabilised woven polypropylene, 97% reflective aluminium foil, and fire-resistant polymer adhesive, backed by a polymer flood coat.